When given the centre court, behaves (4)
I believe the answer is:
acts
'behaves' is the definition.
(acting is a kind of behaving)
'when given the centre court' is the wordplay.
'when' becomes 'as' (eg 'when I walked' means 'as I walked').
'given' is an insertion indicator.
'the centre court' becomes 'ct' (I can't explain this - if you can you should give a lot more credence to this answer).
'as' going around 'ct' is 'ACTS'.
Can you help me to learn more?
(Other definitions for acts that I've seen before include "the entertainment for a revue?" , "Follower of John" , "5th NT book" , "Parliaments pass them" , "exerts influence" .)