Large crustacean (7)

I think it could be either:

Which length description are you looking for?:

lobster

'large crustacean' is the definition.
(I've seen this before)

This is the entire clue.

(Other definitions for lobster that I've seen before include "Marine creature" , "Eight-legged shellfish, scarlet when boiled" , "One showing claws" , "food?" , "Pincered crustacean, a delicacy" .)

I've seen this clue in The Independent, The Times, The Telegraph, The Mirror and The Sun.

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