Can Carlos contrive to compose them? (6)
I believe the answer is:
carols
'contrive to compose them?' is the definition.
I can't tell whether this defines the answer.
'can carlos' is the wordplay.
'can' is an anagram indicator (I've seen 'canned' mean this (canned can mean drunk)).
'carlos' anagrammed gives 'CAROLS'.
Can you help me to learn more?
(Other definitions for carols that I've seen before include "Special songs for Christmas" , "Traditional Christmas songs" , "Seasonal songs" .)