Pretty good sound toys stuffed, tummies originally getting squeezed (3,2,5)
I believe the answer is:
not so dusty
'pretty good' is the definition.
'sound toys stuffed tummies originally getting squeezed' is the wordplay.
'stuffed' indicates an anagram.
'originally' indicates taking the first letters.
'getting squeezed' means one lot of letters goes inside another.
The first letter of 'tummies' is 't'.
'sound'+'toys'='soundtoys'
'soundtoys' with letters rearranged gives 'nosodusty'.
'nosodusty' enclosing 't' is 'NOT SO DUSTY'.
(Other definitions for not so dusty that I've seen before include "Fairly well" , "Reasonably good" , "Quite good (after housework?)" , "It's fairly good" , "when the daily's been" .)