1) Clambake fare 2) Clambake plateful 3) Dinner in a bucket 4) Liners 5) Long-neck clams 6) Mississippi river boats 7) Mississippi travelers 8) Seafood bucketful 9) Seafood restaurant bucketful 10) Seashore treat 11) Ships or clams 12) Soft clams 13) Soft shell clams 14) Soft-shell clams 15) Some clams 1) Clams 2) Crabs 
Steamers is British slang for gangs of muggers who operate in force.