Relish or delight in (3,2)
I believe the answer is:
lap up
This clue is a double definition.
'relish' is the first definition.
(I've seen this in another clue)
'delight in' is the second definition.
(to lap something up is to delight in it)
(Other definitions for lap up that I've seen before include "Take in avidly" , "motor race by some distance?" , "Accept with obvious pleasure" , "Scoop" , "Take in willingly (with the tongue?)" .)