Be proud and resolute going outside (5,3)
I believe the answer is:
stand out
'be proud' is the definition.
(I've seen this before)
'and resolute going outside' is the wordplay.
'resolute' becomes 'stout' (similar in meaning).
'going outside' means one lot of letters goes inside another (the word goes on the outside of inserted letters).
'and' inserted within 'stout' is 'STAND OUT'.
(Other definitions for stand out that I've seen before include "Be conspicuous, or persist in demand" , "Be conspicuous, or persist in demands" , "highlighted?" , "Be highly noticeable" , "Don't agree to - project" .)