Exeter dropping a couple of points before getting one more (5)
I believe the answer is:
extra
'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" .)