Assume it's suitable (11)
I believe the answer is:
appropriate
I believe this is a double definition.
'assume' is the first definition.
(thesaurus)
'suitable' is the second definition.
(synonyms)
'it's' acts as a link.
(Other definitions for appropriate that I've seen before include "Take; suitable" , "half-inch" , "Fit" , "pocket" , "Whip" .)