Crossword Genius

You could use this to search for a loutish character (5)

Ross

I believe the answer is:

yahoo

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

'character' is the definition.
(Yahoo is an example)

'you could use this to search for a loutish' is the wordplay.
I cannot really understand how this works, but
'you' could be 'ya' (non-standard spelling as in 'see ya later') and 'ya' is located in the answer.
The remaining letters 'hoo' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...

Can you help me to learn more?

(Other definitions for yahoo that I've seen before include "Uncouth person" , "One of Dean Swift's brutish people" , "In novel, brute" , "Swift brute" , "Exclamation of joy; brute" .)

I've seen this clue in The Everyman puzzle in The Observer.
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