Become crazy having turn with fruit (2,7)
I believe the answer is:
go bananas
'become crazy' is the definition.
'turn with fruit' is the wordplay.
'turn' becomes 'go' (a person's move in a board game).
'with' is a charade indicator (letters next to each other).
'fruit' becomes 'bananas' (I've seen this before**).
'go'+'bananas'='GO BANANAS'
'having' is the link.
(Other definitions for go bananas that I've seen before include "Be extremely excited" , "Show enthusiasm" , "Become wild" , "Flip one's lid (sl.)" , "Freak out" .)