1) Athlete depicted as Roman 2) Athlete of a kind 3) Ben-Hur was one 4) Boater 5) Boatman 6) Crew member 7) Crew-team member 8) Guy rowing 9) Henley competitor 10) Male rower 11) Member of the crew team 12) One out of eight 13) One who made the crew cut 14) Oxford Blue depicted as Roman 15) Rower 16) Rowing competitor Found on https://www.crosswordclues.com/clue/oarsman
Oars'man (ōrz'm a n) noun ; plural Oarsmen (-m e n). One who uses, or is skilled in the use of, an oar; a rower. « At the prow of the boat, rose one of the oarsmen .» Longfellow. Found on http://www.encyclo.co.uk/webster/O/1