Want to disguise hatred (6)
I believe the answer is:
dearth
'want' is the definition.
(both can mean a lack or scarcity)
'disguise hatred' is the wordplay.
'disguise' is an anagram indicator (I've seen 'disguised' mean this).
'hatred' anagrammed gives 'DEARTH'.
'to' is the link.
(Other definitions for dearth that I've seen before include "Lack of resources" , "Red hat for scarcity" , "Severe lack" , "Acute shortage" , "want" .)