Nightclub closing early, one may slip round the back (4)
I believe the answer is:
disc
'one may slip round the back' is the definition.
I can't judge whether this defines the answer.
'nightclub closing early' is the wordplay.
'nightclub' becomes 'disco' (a disco is a club for dancing).
'closing early' means to remove the last letter.
'disco' with its last letter removed is 'DISC'.
Can you help me to learn more?
(Other definitions for disc that I've seen before include "Part of flower" , "put on by jockey?" , "In Olympic event" , "Back part" , "Forty-five" .)