Crossword Genius

Put a leper through treatment that's going on for ever (9)

Ross

I believe the answer is:

perpetual

'going on for ever' is the definition.
(I've seen this before)

'put a leper through treatment' is the wordplay.
'through treatment' indicates anagramming the letters (letters are treated or processed).
'put'+'a'+'leper'='putaleper'
'putaleper' with letters rearranged gives 'PERPETUAL'.

'that's' is the link.

(Other definitions for perpetual that I've seen before include "Endless, lasting" , "Going on for ever" , "Continuous - permanent" , "Continuing forever or indefinitely" , "Constant" .)

I've seen this clue in The Guardian.
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