Collocations for clench - verb
ADV.
tight/tightly
His jaw was tightly clenched.
His jaw was tightly clenched.
involuntarily
Her hands clenched involuntarily.
Her hands clenched involuntarily.
together
She sat with hands clenched together in her lap.
She sat with hands clenched together in her lap.
PHRASES
clenched between sb''s teeth
He had a pipe clenched between his teeth.
He had a pipe clenched between his teeth.