WordNet sense 1 (footwear usually with wooden soles):

sabot, geta, patten

WordNet sense 2 (become or cause to become obstructed):

choke, congest, foul, back up, choke off, clog up

WordNet sense 3 (a dance performed while wearing shoes with wooden soles; has heavy stamping steps):

clog dance, clog dancing

WordNet sense 4 (impede with a clog or as if with a clog):

constipate

WordNet sense 5 (coalesce or unite in a mass):

clot

WordNet sense 6 (fill to excess so that function is impaired):

overload