Crossword Genius

Half of chop thrown in, is one tempting for dog? (7)

Ross

I believe the answer is:

lurcher

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'dog?' is the definition.
(I've seen this before)

I cannot understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for lurcher that I've seen before include "moving suddenly and unsteadily?" , "Crossbred dog similar to a greyhound" , "that might rock and roll, apparently" , "Hunting breed" , "A greyhound cross" .)

I've seen this clue in The Telegraph.
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