Cups are moved to the end of counter (3)
I believe the answer is:
bra
'cups' is the definition.
(as in the two cups of a bra)
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for bra that I've seen before include "Underwear item" , "Chest supporter" , "Female undergarment" , "support" , "one carrying chest" .)