Where it's very nice to take friends out dancing (6)
I believe the answer is:
'where it's very nice to' is the definition.
I know nothing about this answer so I cannot judge whether this works.
'friends out dancing' is the wordplay.
'friends' becomes 'pals' (pal is a kind of friend).
'out' means to remove the last letter.
'dancing' becomes 'ais' (I can't explain this - if you can you should give a lot more credence to this answer).
'pals' with its final letter taken away is 'pal'.
'take' is the link.
Can you help me to learn more?
(Another definition for palais that I've seen is " dance-hall".)