Bemoan mental confusion (6)

I believe the answer is:

lament

'bemoan' is the definition.
(I know that bemoan can be written as lament)

'mental confusion' is the wordplay.
'confusion' indicates an anagram.
'mental' anagrammed gives 'LAMENT'.

(Other definitions for lament that I've seen before include "Bemoan, bewail" , "Mourn, express regret" , "complaint" , "Sad song" , "Mental (anag)" .)

I've seen this clue in the Sydney Morning Herald.

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