The most common and most likely answer to this crossword clue is the 8 letter word CRAYFISH
I've seen this crossword clue in The Daily Telegraph
C
R
A
Y
F
I
S
H
More clues leading to the result CRAYFISH
- Fail to take in variable poem about aquatic creatures
- Caught two swimmers and a crustacean
- 29‘s wi-fi picked up bang outside
- Factory ship processed missing parts of pot
- Crustacean caught by skate and another aquatic creature
- Many beam if around mum and little nipper
- Caught skate then trawl perhaps for crustaceans
Buddy explains!

The straight part
We know that "little nipper" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case little nipper = crayfish.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 CRAYFISH mean?
CRAYFISH verb- To backpedal, desert or withdraw (also used with out).
- Any of numerous freshwater decapod crustaceans in superfamilies Astacoidea and Parastacoidea, resembling the related lobster but usually much smaller.
- A rock lobster (family Palinuridae).
- The species Thenus orientalis of the slipper lobster family.
- To catch crayfish