Dissolute type to spray with gunfire (4)

I believe the answer is:

rake

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'spray with gunfire' is the definition.
(I've seen this in another clue)

I don't understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for rake that I've seen before include "Scraper - womaniser" , "Scrape" , "Pronged tool with long handle" , "incline to > scratch" , "One with teeth" .)

I've seen this clue in The Irish Independent.

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