Crossword Genius

Large boat’s bird (4)

Ross

I believe the answer is:

lark

'bird' is the definition.
(lark is a kind of bird)

'large boat's' is the wordplay.
'large' becomes 'l'.
'boat' becomes 'ark' (ark is a kind of boat).
'l'+'ark'='LARK'

(Other definitions for lark that I've seen before include "Songbird - 3" , "Rise with this bird to get up early" , "One in exaltation" , "Songbird; escapade" , "High-flying songbird" .)

I've seen this clue in The Hindu.
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