The most common and most likely answer to this crossword clue is the 7 letter word FROGLET
F
R
O
G
L
E
T
Buddy explains!
The straight part
We know that "small amphibian" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case small amphibian = froglet.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does FROGLET mean?
FROGLET noun- A frog that skips the tadpole stage and emerges as a fully developed frog.
- A little or insignificant French person.