Crossword Genius

Ruin second milliner (7)

Ross

I believe the answer is:

shatter

'ruin' is the definition.
(I've seen this before)

'second milliner' is the wordplay.
'second' becomes 's' (common abbreviation).
'milliner' becomes 'hatter' (synonyms).
's'+'hatter'='SHATTER'

(Other definitions for shatter that I've seen before include "Completely upset" , "Break into many pieces" , "thoroughly upset" , "Break into many bits" , "Crack" .)

I've seen this clue in The Mirror.
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