Cut good wood (4)

I believe the answer is:

gash

'cut' is the definition.
(a gash is a wound or cut)

'good wood' is the wordplay.
'good' becomes 'g' (abbreviation).
'wood' becomes 'ash' (wood from an ash tree).
'g'+'ash'='GASH'

(Other definitions for gash that I've seen before include "Ghastly" , "Unnecessary" , "Wide cut" , "Long deep wound" , "Gaping wound" .)

I've seen this clue in The Sun, The Times and The Independent.

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