Rowing boat for one (4)

I believe the answer is:

proa

I'm a little stuck... Click here to teach me more about this clue!

'boat for one' is the definition.
'proa' can be an answer for 'boat' (type of boat). I'm not certain of the 'for one' bit.

I don't understand the remainder of the clue.

Can you help me to learn more?

(Other definitions for proa that I've seen before include "Malay boat with identical ends and one outrigger" , "Boat's" , "Vessel" , "Malay sailing boat with outrigger" , "Canoe-like boat of South Pacific" .)

I've seen this clue in The Times and The Sunday Times.

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