Stay there and you won't miss the bus! (4)
I believe the answer is:
stop
'stay' is the definition.
(I know that stay can be written as stop)
'there and you won't miss the bus' is the wordplay.
I cannot quite see how this works, but
'the' could be 't' (the is pronounced as a 't' sound in some dialects) and 't' is present in the answer.
The remaining letters 'sop' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for stop that I've seen before include "set of organ pipes" , "break" , "Withhold large amount raised" , "Stay" , "Finished" .)