Boys painted Medical Officer in strange attire (8)
I believe the answer is:
amoretti
'boys painted' is the definition.
I know that 'boys' relates to this answer.
'medical officer in strange attire' is the wordplay.
'medical officer' becomes 'MO' (abbreviation).
'in' is an insertion indicator.
'strange' is an anagram indicator.
'attire' with letters rearranged gives 'aretti'.
'mo' going within 'aretti' is 'AMORETTI'.
Can you help me to learn more?
(Other definitions for amoretti that I've seen before include "Little winged creatures" , "images of Cupid" , "Cupids in art" , "Plump lads" , "Bonkers" .)