Black and green is fine (4)

I believe the answer is:

braw

'fine' is the definition.
('braw' can be a synonym of 'fine')

'black and green' is the wordplay.
'black' becomes 'b' (as in pencil classifications).
'and' says to put letters next to each other.
'green' becomes 'raw' ('raw' can be a synonym of 'green').
'b'+'raw'='BRAW'

'is' is the link.

(Another definition for braw that I've seen is " Fine (for the Scots)".)

I've seen this clue in The Telegraph.

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