Acunits

1 clue
Summer coolers, briefly, and a hint to this puzzle's six longest answers
Similar answers:
Abaculus
Abacus
Abacuses
Acu
Acuate
Acucar
Acue
Acuely
Acuen
Acuestickguitar
Acuff
Acuffs
Acuity
Aculeus
Acumen
Acumenbrother
Acumens
Acuna
Acunit
Acunits