Room to spread capes (5)
I believe the answer is:
space
'room' is the definition.
(thesaurus)
'spread capes' is the wordplay.
'spread' indicates anagramming the letters.
'capes' with letters rearranged gives 'SPACE'.
'to' is the link.
(Other definitions for space that I've seen before include "Blank" , "-- Capsule; -- bar" , "A particular area for paces" , "Gap; --- Oddity (Bowie)" , "Emptiness" .)