Crossword Genius

One animal in a line, we're told (3)

Ross

I believe the answer is:

roe

'one animal' is the definition.
(I've seen this before)

'a line we're told' is the wordplay.
'a line' becomes 'row' (row is a kind of line).
'we're told' shows a homophone (sound like).
'row' is a homophone of 'ROE'.

'in' is the link.

(Other definitions for roe that I've seen before include "Fish eggs; small deer" , "Swift runner" , "eg Caviare" , "Caviar" , "Mass of fish eggs" .)

I've seen this clue in the Evening Standard.
Want a hint initially instead of a full solution? Install my app