Group we enter with courage and love (10)
I believe the answer is:
sweetheart
'love' is the definition.
(thesaurus)
'group we enter with courage' is the wordplay.
'group' becomes 'set' (set is a kind of group**).
'enter' means one lot of letters goes inside another.
'with' is a charade indicator (letters next to each other).
'courage' becomes 'heart' (heart is a kind of courage).
'set' enclosing 'we' is 'sweet'.
'sweet'+'heart'='SWEETHEART'
'and' acts as a link.
(Other definitions for sweetheart that I've seen before include "ducks" , "Term of endearment" , "boyfriend?" , "Lover" , "Darling" .)