Chap cooking rice (4)
I believe the answer is:
eric
'chap' is the definition.
'cooking rice' is the wordplay.
'cooking' indicates anagramming the letters (cook can mean to falsify or distort).
'rice' anagrammed gives 'ERIC'.
(Other definitions for eric that I've seen before include "-- Sykes; -- Idle" , "Boy's name" , "--, or Little by Little (Dean Farrar)" , ".... the Red, Norwegian explorer who discovered Greenland in 10th century" , "Mr Clapton" .)