TADPOLE

Future jumper

• Creature that loses its tail

• Frog larva

• Frog of the future

• Frog-to-be

• Future frog

• He'll croak eventually

• He's a little froggy

• Immature swimmer

• Infant amphibian

• Kermit as a kid

• Kermit as a youngster, presumably

• Kermit as a youth

• Kermit, once?

• Larval amphibian

• Lily-pond larva

• One who'll croak in the future

• Polliwog

• Pond denizen

• Pond infant

• Pond swimmer

• Small frog in a big pond?

• Young Kermit to plead insane (7)

• A larval frog or toad