Different from class (4)

I believe the answer is:

form

'class' is the definition.
(I know that class can be written as form)

'different from' is the wordplay.
'different' indicates anagramming the letters (letters placed in a different order).
'from' with letters rearranged gives 'FORM'.

(Other definitions for form that I've seen before include "Make" , "Seat" , "Visible shape, class" , "etiquette" , "Criminal record (colloq.)" .)

I've seen this clue in The Mirror.

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