Rough type of service provider (5)

I believe the answer is:

yahoo

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This clue could be a double definition.

'rough type' is the first definition.
'yahoo' can be an answer for 'rough' (thesaurus). I'm unsure of the 'type' bit.

'service provider' is the second definition.
(I've seen this before)

'of' acts as a link.

Can you help me to learn more?

(Other definitions for yahoo that I've seen before include "Brutish lout" , "[WHOOPEE] !" , "Human-looking beast in Gulliver's Travels: search engine conglomerate" , "Rude or coarse person" , "Swiftian ruffian" .)

I've seen this clue in The Irish Times.

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