Lewis & Short

1. clāvĭger, gĕra, gĕrum, adj., clubbearing; as an epithet of Hercules [clavagero], the club-bearer (v. clava, 1.), Ov. M. 15, 22; 15, 284; id. F 1, 544; 4, 68.
Also of the robber Periphetes: clavigera proles, Ov. M. 7, 437: clavigerum numen, Sil. 3, 14.