The most common and most likely answer to this crossword clue is the 6 letter word LIMPET
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More clues leading to the result LIMPET
- Feeble Hollywood movie: but it’s hard to shake off!
- Halt alien sea creature
- Rogue beset by obstruction that's difficult to shift
- Clingy sort of scamp, allowed outside
- Clingy type left Mike, taken by current favourite
- Sticker permitted troublemaker to enter
- Gastropod with soft elegant shell
- Consent to entertaining mischievous child, one not easily got rid of
- Back of car missing special sticker?
- Monkey occupying what must be reserved for clinger
Buddy explains!

The straight part
We know that "mollusc" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case mollusc = limpet.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 LIMPET mean?
LIMPET noun- A small mollusc, of the family Patellidae with a conical shell found clinging to rocks in the intertidal zones of rocky shores.
- Someone clingy or dependent; someone disregarding or ignorant of another's personal space.