Stop arguing and pay the bill (6)
I believe the answer is:
settle
This might be a double definition.
'stop arguing' is the first definition.
'settle' can be an answer for 'stop' (settling is a kind of stopping). I am not sure about the 'arguing' bit.
'pay the bill' is the second definition.
(I've seen this before)
'and' acts as a link.
Can you help me to learn more?
(Other definitions for settle that I've seen before include "Solve" , "Fix; reside" , "High-backed bench" , "near Giggleswick" , "Decide - pay for - square - bench" .)