Pinch this short girl (6)
I believe the answer is:
thieve
'pinch' is the definition.
(thesaurus)
'this short girl' is the wordplay.
'short' means to remove the last letter.
'girl' becomes 'eve' (**).
'this' with its last letter taken off is 'thi'.
'thi'+'eve'='THIEVE'
(Other definitions for thieve that I've seen before include "Pilfer" , "Take illegally" , "Knock off" , "Rob" , "Steal things" .)