Crossword Genius

Signed up (8)

Ross

I believe the answer is:

enlisted

'signed up' is the definition.
(enlisting is a kind of signing up)

This is the entire clue.

(Other definitions for enlisted that I've seen before include "Persuaded to serve" , "Recruited" , "Joined, having listened" , "Joined up (milit.)" , "Lower ranks in US army" .)

I've seen this clue in The Washington Post, The Telegraph, the L.A. Times Daily, The New York Times, the Newsday.com, The Guardian and The Times.
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