Relating to reforming (8)

I believe the answer is:

altering

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'relating to reforming' is the definition.
I can't tell whether this definition defines the answer.

'relating to reforming' is the wordplay.
'to reforming' indicates anagramming the letters.
'relating' with letters rearranged gives 'ALTERING'.

Can you help me to learn more?

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

I've seen this clue in The Irish News.

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