Pest throws around inn sauce (8)
I believe the answer is:
nuisance
'pest' is the definition.
(both can mean an annoying person)
'around inn sauce' is the wordplay.
'around' indicates anagramming the letters.
'inn'+'sauce'='innsauce'
'innsauce' anagrammed gives 'NUISANCE'.
'throws' is the link.
I am not very happy about this link. It may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for nuisance that I've seen before include "Annoying person/thing" , "Bothersome pest" , "It causes inconvenience or annoyance" , "Bothersome annoying person" , "One causing annoyance" .)