Another married lover (7)
I believe the answer is:
admirer
'lover' is the definition.
(admirer is a kind of lover)
'another married' is the wordplay.
'another' indicates an anagram.
'married' with letters rearranged gives 'ADMIRER'.
(Other definitions for admirer that I've seen before include "One who cherishes, like boy friend" , "Suitor; devotee" , "Married to one who cherishes" , "Supporter or suitor" , "One who regards (someone) with respect" .)