Crossword Genius

Canines Elvis hit? (5,3)


I believe the answer is:

hound dog

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This could be a double definition.

'canines elvis' is the first definition.
The definition suggests a singular noun which matches the answer.

'hit?' is the second definition.
Although both the answer and definition are singular nouns, I can't see how one could define the other.

Can you help me to learn more?

(Other definitions for hound dog that I've seen before include "Writing desk" , "Elvis song" .)

I've seen this clue in The Sun.
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