Crossword Genius

Exeter dropping a couple of points before getting one more (5)

Ross

I believe the answer is:

extra

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

'more' is the definition.
(I've seen this in other clues)

I don't understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for extra that I've seen before include "redundant > spear-carrier" , "Way of scoring at cricket" , "Wide, no-ball, leg bye, etc" , "Minor actors in crowd scenes" , "Accessory" .)

I've seen this clue in The Independent.
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