Crossword Genius

Writer of examination for dog (6)

Ross

I believe the answer is:

setter

I believe this is a double definition.

'writer of examination' is the first definition.
(person who set the exam)

'dog' is the second definition.
(setter is a type of dog)

'for' is the link.

(Other definitions for setter that I've seen before include "who is giving you problems right now?" , "Long-haired dog breed" , "Puzzle composer" , "Thematic type [DOG]" , "pointer" .)

I've seen this clue in The Telegraph.
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