Rod will do a swap with you (6)
I believe the answer is:
switch
'rod' is the definition.
(I've seen this before)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for switch that I've seen before include "Contact maker or breaker" , "Light whip - light control" , "Electrical control - change sides" , "Change over - whip" , "Sudden change; a rod" .)