Crossword Genius

An explorer could back a roué (5)

Ross

I believe the answer is:

drake

'an explorer' is the definition.
(I know that Drake is a navigator)

'could back a roue' is the wordplay.
'back' indicates one should take the final letters.
'a roue' becomes 'rake' ('rake' can be a synonym of 'roue').
The final letter of 'could' is 'd'.
'd'+'rake'='DRAKE'

(Other definitions for drake that I've seen before include "Aquatic bird" , "Male bird" , "adventurer from Devon" , "world traveller" , "Male water-bird" .)

I've seen this clue in The Daily Express.
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