I have no suntan: spit! (6)

I believe the answer is:

impale

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'spit' is the definition.
(I know that spit is a kind of pin)

I cannot understand how the rest of the clue works.

(Other definitions for impale that I've seen before include "Pierce, me pail (anag.)" , "transfix with sharp item" , "Skewer" , "Pierce with a stick (as Vlad did?)" , "Pierce with a sharp stake" .)

I've seen this clue in The Times.

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