Round (6)
'round' is the definition.
(I know that round can be written as circular)
This is all the clue.
(Other definitions for circular that I've seen before include "Letter or notice copied to a number of people" , "plug, perhaps" , "Round kind of bulletin?" , "Leaflet for mass distribution" , "Notice for wide distribution" .)
(Other definitions for rotund that I've seen before include "Rather obese" , "Chubby" , "Tubby" , "Grandiloquent; podgy" , "Full" .)
'round' is the definition.
(thesaurus)
This is the entire clue.
(Other definitions for bullet that I've seen before include "High-speed projectile" , "Revolver missile" , "Small missile from gun" , "Projectile ammunition" , "Point in report" .)