Heather makes a rice pudding (5)
I believe the answer is:
erica
'heather' is the definition.
(the plant genus Erica includes heather plants)
'a rice pudding' is the wordplay.
'pudding' indicates an anagram (a mixture or pudding of the letters).
'a'+'rice'='arice'
'arice' anagrammed gives 'ERICA'.
'makes' is the link.
(Other definitions for erica that I've seen before include "Moorland plant, girl's name" , "growing up on the moors" , "ling" , "found on the moors" , "Girl's name - I care (anag)" .)