Frozen figure (7)
(Other definitions for snowman that I've seen before include "Frosty the . . . . . . . (children's song)" , "Icy figure" , "Cold figure" , "Seasonal figure" , "Frozen article child makes" .)
(Other definitions for olaf that I've seen before include "King and patron saint of Norway" , "Name of five Norwegian kings" , "Man's name; foal (anag.)" , "King --, cantata by Elgar" , "Scandinavian monarch" .)