Hero old flame accepting a ring (7,3)
I believe the answer is:
leading man
'hero' is the definition.
(thesaurus)
'old flame accepting a ring' is the wordplay.
'old flame' becomes 'leman' (I can't explain this - if you can you should believe this answer much more).
'accepting' indicates putting letters inside.
'ring' becomes 'ding' (dinging is a kind of ringing).
'a'+'ding'='ading'
'leman' enclosing 'ading' is 'LEADING MAN'.
Can you help me to learn more?
(Other definitions for leading man that I've seen before include "Protagonist" , "Chief actor" , "Principal actor" , "Star" , "top fellow on stage" .)