Positive model is looking for a fiancé? (8)
I believe the answer is:
proposer
'looking for a fiance?' is the definition.
I can't tell whether this defines the answer.
'positive model' is the wordplay.
'positive' becomes 'pro' (I've seen this in another clue).
'model' becomes 'poser' (synonyms).
'pro'+'poser'='PROPOSER'
'is' is the link.
Can you help me to learn more?
(Other definitions for proposer that I've seen before include "One making toast" , "One putting forward motion" , "member of debating team" , "One introducing motion" , "One coming up with" .)