Broken tip? Repair's no sweat (12)

I believe the answer is:

perspiration

'sweat' is the definition.
('perspiration' can be a synonym of 'sweat')

'broken tip? repair's no' is the wordplay.
'broken' is an anagram indicator.
'tip'+'repairs'+'no'='tiprepairsno'
'tiprepairsno' is an anagram of 'PERSPIRATION'.

(Other definitions for perspiration that I've seen before include "Ninety nine percent of genius" , "Sweat" , "is exuded" .)

I've seen this clue in The Telegraph.

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