I dust ma's mixing bowl (7)
I believe the answer is:
stadium
'bowl' is the definition.
('stadium' can be a synonym of 'bowl')
'i dust ma's mixing' is the wordplay.
'mixing' indicates an anagram.
'i'+'dust'+'ma'='idustma'
'idustma' with letters rearranged gives 'STADIUM'.
(Other definitions for stadium that I've seen before include "Sports arena" , "Venue for sporting events, concerts etc" , "Sports ground as for athletics" , "A major sports ground" , "Open-air sports venue" .)