One estimates broken spa repair (9)

I believe the answer is:

appraiser

'one estimates' is the definition.

'broken spa repair' is the wordplay.
'broken' is an anagram indicator.
'spa'+'repair'='sparepair'
'sparepair' anagrammed gives 'APPRAISER'.

(Another definition for appraiser that I've seen is " Judge".)

I've seen this clue in The Telegraph.

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