Related in a different style (7)

I believe the answer is:

altered

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'in a different style' is the definition.
I can't judge whether this definition defines the answer.

'related' is the wordplay.
'related' can be anagrammed to 'ALTERED'.
Though, I am not sure how this is indicated.

Can you help me to learn more?

(Other definitions for altered that I've seen before include "Changed, adapted" , "Converted" , "Different" , "Reformed" , "Treadle (anag)" .)

I've seen this clue in the Evening Standard.

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