Cryptic caves

[snebbit]

Clue: Welsh cave

 

[Graigwen]

This makes 90% sense, at least to me:

Daren Cilau
.

 

[Graigwen]

This makes 90% sense, at least to me:

Daren Cilau
.

Sorry, it now makes 100% sense.
.

 

[RobinGriffiths]

Ah. nice. I lopped off the wrong bit of the HB and was looking for Pen something!

 

[snebbit]

This makes 90% sense, at least to me:

Daren Cilau
.

Correct!

 

[Graigwen]

I am but briefly home for an hour and will post a long, but hopefully easy, clue this evening.

A whittled pencil has lost its first letter.
It is followed by gold - aur in Welsh and chemical symbol Au.
Truth comes first in "Truth or Dare"; but in this clue Dare comes first.
.

 

[Fulk]

Hmmm . . . a convoluted clue (to me, anyway) – still, somebody got it, so fair dos.

 

[Graigwen]

I have abandoned the attempt to write the long and involved clue - after ten lines it was still too obscure. Here instead is a short and really easy one.

"This cave beneath a cave"

3,2,4

 

[Fulk]

Dan yr Ogof?

 

[Graigwen]

Dan yr Ogof?

Spot on!

Your turn now.

 

[Fulk]

We're planning a trip here at a quarter to six tonight (6,4).

 

[Graigwen]

We're planning a trip here at a quarter to six tonight (6,4).

Sunset Hole?
.

 

[Fulk]

That's the one, back to you.

 

[Graigwen]

"Sounds like something small and slimy following an old horse after a democratic sampling."

1 2

 

[ChrisB]

1 2

Is that the letter count?

 

[Tritim230]

"Sounds like something small and slimy following an old horse after a democratic sampling."

1 2

Pollnagollum?

 

[Graigwen]

Pollnagollum?

Excellent.

Gollum and a nag following a poll.

Your go now.

 

[Tritim230]

Try this one. I don't think the clue is too hard but it will be a test of cave name knowledge.
"Gap within investment fund?"
4,2,3,5

 

[Fulk]

There's only one 'g' in Pollnagollum . . .

 

[Graigwen]

There's only one 'g' in Pollnagollum . . .

This is true, but does not invalidate the clue. I am still fairly innocent of the protocol for cryptic clues, but overlaps such as the use of g in nag and the same letter again for the start of Gollum are surely acceptable so long as it is just an overlap not moving the letter around.

In setting the clue I had in mind snebbit's clue on Monday:-
"Riches follow a whittled HB, if only the truth had been told first instead..."

The answer Daren Cilau used the letter e in a similar way:
Daren Cilau
Daren Cilau

The overlap caused me a bit more work, but made the process more interesting.
As I don't know what I am doing, I am open to further argument. Is there an agreed way to set these clues?

The current clue looks very tricky. With no confidence I'll have a go at:
"Hole in the floor"
.