Camp party's given a whirl – about time! (6)
I believe the answer is:
stalag
'camp party's' is the definition.
'stalag' can be an answer for 'camp' (German prison camp in World War 2). I am unsure of the 'party's' bit.
'given a whirl about time' is the wordplay.
'given' becomes 'galas' (I can't justify this - if you can you should believe this answer much more).
'a whirl' is a reversal indicator (I've seen 'whirling' mean this (whirl can mean to spin round or turn back)).
'about' means one lot of letters goes inside another.
'time' becomes 't' (abbreviation).
'galas' in reverse letter order is 'salag'.
'salag' placed around 't' is 'STALAG'.
Can you help me to learn more?
(Other definitions for stalag that I've seen before include "German concentration camp" , "WWII German prisoner of war camp" , "German World War two prison camp" , "Type of German prison camp" , "Water at the mouth" .)