Crossword Genius

Changing integral formation (8)

Ross

I believe the answer is:

altering

'changing' is the definition.
(altering is a kind of changing)

'integral formation' is the wordplay.
'formation' is an anagram indicator.
'integral' anagrammed gives 'ALTERING'.

(Other definitions for altering that I've seen before include "Changing -- 1 across (anag)" , "making a change" , "Modifying, changing" , "Making changes" , "revising" .)

I've seen this clue in The Telegraph and The Guardian.
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