Crossword Genius

It's forbidden to change a boot (5)

Ross

I believe the answer is:

taboo

'it's forbidden' is the definition.
('taboo' can be a synonym of 'forbidden')

'change a boot' is the wordplay.
'change' indicates an anagram.
'a'+'boot'='aboot'
'aboot' anagrammed gives 'TABOO'.

'to' is the link.

(Other definitions for taboo that I've seen before include "A ban or prohibition of superstitious kind" , "Subject to prohibition" , "Prohibited, sacred" , "Prohibited as unclean or holy" , "Ritual prohibition" .)

I've seen this clue in the Evening Standard.
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