The 1921 Clemson Tigers football team represented Clemson Agricultural CollegeâÂÂnow known as Clemson UniversityâÂÂas a member of the Southern Intercollegiate Athletic Association (SIAA) during the 1921 college football season. Under first-year head coach E. J. Stewart, the Tigers posted an overall record of 1âÂÂ6âÂÂ2 with a mark of 0âÂÂ4âÂÂ2 in SIAA play. J. H. Spearman was the team captain.