Performance at one time given in clubs, right? (7)
I believe the answer is:
Here is my best explanation:
'performance' is the definition.
(I have seen 'Musical performance ' mean 'concert' so perhaps 'performance' could also mean 'concert')
'one time given in clubs right?' is the wordplay.
'one time' becomes 'once' ('once' can be a synonym of 'one time'**).
'given in' is an insertion indicator.
'clubs' becomes 'c' (abbreviation used in card games such as bridge).
'right?' becomes 'rt'.
'once' placed within 'crt' is 'CONCERT'.
'at' acts as a link.
(Other definitions for concert that I've seen before include "Joint action", "Harmony, performance", "Performance of music", "Public performance of music", "Musical event", "Harmony of people's opinions, actions or characters", "Some entertainment" and "Musical performance".)