Lent hat to cricketer (4,6)
I believe the answer is:
fast bowler
'cricketer' is the definition.
(I've seen this before)
'lent hat' is the wordplay.
'lent' becomes 'fast' (I've seen this before).
'hat' becomes 'bowler' (bowler is a kind of hat).
'fast'+'bowler'='FAST BOWLER'
'to' is the link.
(Other definitions for fast bowler that I've seen before include "Sporting quickie?" , "Cricketer" .)