Desiring (7)
'desiring' is the definition.
('want' can be a synonym of 'desire')
This is all the clue.
(Other definitions for wanting that I've seen before include "Deficient" , "Inadequate" , "Desiring or being short of" .)
'desiring' is the definition.
(I know that desiring can be written as wishing)
This is the entire clue.
(Another definition for wishing that I've seen is " Hoping".)