Crossword Genius

Minus? Completely baffle (7)

Ross

I believe the answer is:

nonplus

I'm a little stuck... Click here to teach me more about this clue!

'baffle' is the definition.
(I know that baffle can be written as nonplus)

I can't explain the remainder of the clue.

Can you help me to learn more?

(Other definitions for nonplus that I've seen before include "Put at a loss; confuse" , "Perplex completely with negative and positive" , "disadvantageous or neutral, presumably" , "Get flummoxed" , "Baffle" .)

I've seen this clue in The Telegraph.
Want a hint initially instead of a full solution? Install my app