Had eager spin bowler, for example (8)
I believe the answer is:
'bowler for example' is the definition.
(I know that bowler hat is a type of hat)
'had eager spin' is the wordplay.
'spin' is an anagram indicator.
'hadeager' anagrammed gives 'HEADGEAR'.
(Other definitions for headgear that I've seen before include "bowler, for example" , "cap, say" , "bowler perhaps" , "Aged hare? (anagram)" , "crown, say" .)