Elusive (7)
I believe the answer is:
evasive
'elusive' is the definition.
(thesaurus)
This is all the clue.
(Other definitions for evasive that I've seen before include "Trying to avoid commitment" , "make out-of-the-way sort of action" , "Prevaricating" , "Uncommitted" , "Shifty, dodging question" .)