Moistens black turnip after flipping (6)

I believe the answer is:

bedews

'moistens' is the definition.

'black turnip after flipping' is the wordplay.
'black' becomes 'b' (as in pencil classifications).
'turnip' becomes 'swede' (swede is a kind of turnip).
'after flipping' says the letters should be written in reverse.
'swede' in reverse letter order is 'edews'.
'b'+'edews'='BEDEWS'

I've seen this clue in The Everyman puzzle in The Observer.

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