
1) Academy freshman 2) Academy newbie 3) Ancient Roman commoner 4) Annapolis freshman 5) Common citizen 6) Common man 7) Common man of ancient Rome 8) Common person 9) Common sort 10) Commoner 11) Commoner, slang 12) David Robinson was one, once 13) Everyman 14) First-year cadet 15) Mere commoner 16) Military academy frosh
Found on
https://www.crosswordclues.com/clue/pleb

Pleb is slang for an inferior, insignificant or common person.
Found on
http://www.probertencyclopaedia.com/browse/ZP.HTM
No exact match found.