Rupee spent on mash (5)
I believe the answer is:
puree
'mash' is the definition.
(I've seen this before)
'rupee spent' is the wordplay.
'spent' indicates an anagram.
'rupee' anagrammed gives 'PUREE'.
'on' acts as a link.
(Other definitions for puree that I've seen before include "Pulped vegetable or fruit" , "fool" , "Food passed through a liquidiser" , "Sieved food reduced to pulp" , "Pulped fruit or vegetables" .)