Accept support after not-so-brief space (7)
I believe the answer is:
embrace
'accept' is the definition.
(embracing is a kind of accepting)
'support after not-so-brief space' is the wordplay.
'support' becomes 'brace' (brace is a kind of support).
'after' is a charade indicator (letters next to each other).
'not-so-brief space' becomes 'em' (in typography, a large space as wide as an 'm').
'brace' after 'em' is 'EMBRACE'.
(Other definitions for embrace that I've seen before include "Include (in one's arms)" , "Enfold in arms, hug" , "Include - clasp" , "bear-hug?" , "Willingly accept" .)