Affectionate proposal (6)
I believe the answer is:
tender
I believe this clue is a double definition.
'affectionate' is the first definition.
(I know that affectionate can be written as tender)
'proposal' is the second definition.
(I've seen this before)
(Other definitions for tender that I've seen before include "Delicate sort of bid" , "Offer; sore" , "easily damaged" , "... is the Night/F Scott Fitzgerald" , "Offer; delicate" .)