Be prominent in project (5,3)
I believe the answer is:
stand out
This clue is a double definition.
'be prominent' is the first definition.
(I've seen this before)
'project' is the second definition.
(I've seen this before)
'in' acts as a link.
(Other definitions for stand out that I've seen before include "Be conspicuous, or persist in demands" , "Be highly noticeable" , "highlighted?" , "attract attention" , "Don't agree to - project" .)