Stick out for proposal (7)
I believe the answer is:
project
I believe this is a double definition.
'stick out' is the first definition.
('project' can be a synonym of 'stick out')
'proposal' is the second definition.
(thesaurus)
'for' is the link.
(Other definitions for project that I've seen before include "discharge" , "Protrude; enterprise" , "Enterprise; stick out" , "Planned undertaking" , "Plan of work" .)