Crossword Genius

A little line calling for reduction (5)

Ross

I believe the answer is:

minus

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


If this is the answer I cannot explain how the clue works.

Can you help me to learn more?

(Other definitions for minus that I've seen before include "Reduced by the subtraction of - thus?" , "Lacking; negative" , "Negative arithmetic operation" , "Less, without" , "Disadvantage" .)

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