Crossword Genius

Unit caught a traitor (5)

Ross

I believe the answer is:

carat

'unit' is the definition.
(carat is a kind of unit)

'caught a traitor' is the wordplay.
'caught' becomes 'c' (cricket abbreviation).
'traitor' becomes 'rat' (I've seen this before).
'c'+'a'+'rat'='CARAT'

(Other definitions for carat that I've seen before include "Measure of gold in alloy" , "Unit of weight for gems or purity of gold" , "Unit for precious stone weights" , "weight of rocks" , "Gem weight unit" .)

I've seen this clue in The Times.
Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.