Trophy I had as boy archer (5)
I believe the answer is:
cupid
'boy archer' is the definition.
(Roman love god)
'trophy i had' is the wordplay.
'trophy' becomes 'cup' (cup is a kind of trophy).
'i had' becomes 'I'd' (I'd).
'cup'+'id'='CUPID'
'as' is the link.
(Other definitions for cupid that I've seen before include "a help to Santa" , "heathen god" , "The little love god" , "Cherubic symbol for love" , "boy carrying offensive weapon" .)