Crossword Genius

Awfully nice as a protein (6)

Ross

I believe the answer is:

casein

'a protein' is the definition.
(casein is a kind of protein)

'awfully nice as' is the wordplay.
'awfully' indicates an anagram.
'nice'+'as'='niceas'
'niceas' with letters rearranged gives 'CASEIN'.

(Other definitions for casein that I've seen before include "something for cheese-making" , "It helps to make cheese" , "Protein in milk and cheese" , "What's to be found in milk" .)

I've seen this clue in The Hindu.
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