Live by river? Look for duck (9)

I believe the answer is:

bergander

'duck' is the definition.

'live by river? look' is the wordplay.
'live' becomes 'be' ('be' can be a synonym of 'live').
'by' says to put letters next to each other.
'river?' becomes 'r'.
'look' becomes 'gander' (informal term for a look or glance**).
'be'+'r'+'gander'='BERGANDER'

'for' acts as a link.

I've seen this clue in The Guardian.

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