Rod will do a swap with you (6)
I believe the answer is:
switch
'rod' is the definition.
(I've seen this before)
'do a swap with you' is the wordplay.
I cannot really see how this works, but
'with' could be 'w' (short for with) and 'w' is found in the answer.
The remaining letters 'sitch' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
'will' acts as a link.
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" .)