Bulge in the wall of an artery (8)

I believe the answer is:

aneurysm

(Other definitions for aneurysm that I've seen before include "Permanent abnormal enlargement of an artery" , "Widening of a blood vessel" , "Permanent abnormal dilation of artery" , "Swelling of a blood vessel" , "Sac-like widening of an artery" .)

I've seen this clue in The Irish Times.

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