From Longman Dictionary of Contemporary Englishheavy-setˌheavy-ˈset adjective STRONG PERSONsomeone who is heavy-set is large and looks strong or fat
Examples from the Corpus
heavy-set• Alexander, a heavy-set man in his mid-thirties with a thick beard, laughed.• He was a tall heavy-set man of about sixty, bald, with a brick-red face and a walrus moustache.• Rhys was a tall heavy-set man with greying hair and gentle eyes.• Outside, a fair, willowy girl and a heavy-set woman in white were walking across the lawn. 