Crossword Genius

Artery blocker (4)

Ross

I believe the answer is:

clot

'artery blocker' is the definition.
(I've seen this in another clue)

This is the entire clue.

(Other definitions for clot that I've seen before include "Thick lump - thick person" , "Semi-solid mass -- dunce" , "Coagulate -- 1 across person" , "3 [DUMMY]" , "(Of blood) coagulate" .)

I've seen this clue in The Wall Street Journal.
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