Podgy about right, ultimately? (6)
I believe the answer is:
rotund
'podgy' is the definition.
(thesaurus)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for rotund that I've seen before include "Large and plump" , "Tubby" , "Grandiloquent; podgy" , "stout" , "Bulging" .)