Luther's reformed cheat (7)

I believe the answer is:

hustler

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'cheat' is the definition.
The definition and answer can be both people as well as being singular nouns.
Perhaps there's an association between them I don't understand?

'luther's reformed' is the wordplay.
'reformed' indicates an anagram.
'luthers' is an anagram of 'HUSTLER'.

Can you help me to learn more?

(Other definitions for hustler that I've seen before include "Swindler" , "Aggressive seller" , "The slur (anag)" , "Conman" , "Illicit dealer (mainly US)" .)

I've seen this clue in The Sun.

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