This could make study dusty! (7)

I believe the answer is:

anagram

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'this could make study dusty' is the definition.
The definition suggests a singular noun which matches the answer.

This is all the clue.

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(Other definitions for anagram that I've seen before include "Letter puzzle" , "Hedonism for Sondheim" , "5 down is one" , "Sort of letters" , "Word created from other word" .)

I've seen this clue in The Sun.

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