Frank needs space to stand up (10)
I believe the answer is:
straighten
'stand up' is the definition.
(thesaurus)
'frank needs space' is the wordplay.
'frank' becomes 'straight' (I've seen this before).
'needs' is a charade indicator (letters next to each other).
'space' becomes 'en' (in printing, a space as wide as a letter 'n').
'straight'+'en'='STRAIGHTEN'
'to' is the link.
(Other definitions for straighten that I've seen before include "Unbend, align" , "put back in order" , "Shattering (anag) - unbend" , "Align correctly" , "Remove bends from (something)" .)