Floppy alien kind of mine (6)

I believe the answer is:

limpet

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'kind of mine' is the definition.
'limpet' can be an answer for 'mine' (I've seen this before). I'm not sure about the 'kind of' bit.

'floppy alien' is the wordplay.
'floppy' becomes 'limp' (I've seen this before).
'alien' becomes 'et' (extra terrestrial).
'limp'+'et'='LIMPET'

Can you help me to learn more?

(Other definitions for limpet that I've seen before include "It clings to rock surfaces" , "Creature that clings to seaside stones" , "Mollusc that clings to rocks" , "Gastropod that sticks to rocks" , "Cinging mollusc" .)

I've seen this clue in The Mirror.

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