Crazy ten years we have in company? (9)
I believe the answer is:
entourage
'company?' is the definition.
(I've seen this before)
'crazy ten years we have' is the wordplay.
'crazy' is an anagram indicator.
'years we have' becomes 'our age' (the age we have).
'ten' with letters rearranged gives 'ent'.
'ent'+'ourage'='ENTOURAGE'
'in' acts as a link.
(Other definitions for entourage that I've seen before include "A star may have one" , "Ego nature found in accompanying group" , "The people accompanying a VIP" , "Following" , "train" .)