Crossword Genius

Fishy water? Helper on the way (2-6)

Ross

I believe the answer is:

co-driver

'helper on the way' is the definition.
(someone helping a driver on a road or way)

'fishy water?' is the wordplay.
'fishy' becomes 'cod' (type of fish).
'water?' becomes 'river' (river is a kind of water).
'cod'+'river'='CO-DRIVER'

(Other definitions for co-driver that I've seen before include "Divorcer (anag.)" , "Rally partner" , "Rallying partner" .)

I've seen this clue in The Guardian.
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