Crossword Genius

Become narrower at one end (5)

Ross

I believe the answer is:

taper

(Other definitions for taper that I've seen before include "Wax light; narrow" , "Give a point" , "Gradually come to a point" , "Narrow gradually as candle may" , "Get thinner - lighter" .)

I've seen this clue in the King Feature Syndicate.
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