Joy's husband, for example, no Romeo (7)
I believe the answer is:
elation
'joy's' is the definition.
(elation is a kind of joy)
'husband for example no romeo' is the wordplay.
'husband for example' becomes 'relation' (husband is a kind of relation).
'no' indicates named letters should be taken away.
'romeo' becomes 'r' (phonetic alphabet: alpha, bravo, charlie etc.).
'relation' with 'r' taken out is 'ELATION'.
(Other definitions for elation that I've seen before include "Feeling of joy and pride" , "'High spirits, exhilaration (7)'" , "Feeling of intense delight" , "State of pleasure about toe-nail" , "Feeling of delight or pride" .)