Keep off - the support has been removed (8)

I believe the answer is:

stayaway

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'support has been removed' is the definition.
I know nothing about this answer so I cannot tell whether this works.

'keep off' is the wordplay.
'keep' becomes 'stay' (I've seen this in another clue).
'off' becomes 'away' (synonyms).
'stay'+'away'='STAYAWAY'

'the' is the link.

Can you help me to learn more?

(Other definitions for stayaway that I've seen before include "Striking South African" , "Strike in Pretoria" .)

I've seen this clue in The Irish News.

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