Crossword Genius

Waterproof computer

Ross

I believe the answer is:

mac

I believe this clue is a double definition.

'waterproof' is the first definition.
(I know that mac is a type of waterproof)

'computer' is the second definition.
(as in an Apple Mac)

(Other definitions for mac that I've seen before include "Waterproof raincoat, in short" , "Raincoat (colloq.)" , "Coat - computer" , "A Gaelic son, often in name" , "It may help you keep dry" .)

I've seen this clue in The Daily Mail.
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