Find cameo carved on crucifix (4,6)
I believe the answer is:
come across
'find' is the definition.
('come across' can be a synonym of 'find')
'cameo carved on crucifix' is the wordplay.
'carved' indicates anagramming the letters.
'on' indicates putting letters inside.
'crucifix' becomes 'cross' (I've seen this before).
'cameo' is an anagram of 'omeac'.
'omeac' put inside 'cross' is 'COME ACROSS'.
(Other definitions for come across that I've seen before include "Be perceived as" , "Find accidentally - provide what is necessary" , "provide what is expected" .)