Crossword Genius

Creature with eight legs - and the rest! (6)

Ross

I believe the answer is:

spider

I'm a little stuck... Click here to teach me more about this clue!

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

I cannot understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for spider that I've seen before include "One has eight legs" , "Black widow or redback?" , "potter's accessory?" , "Web developer" , "Webster" .)

I've seen this clue in The Telegraph.
Want a hint initially instead of a full solution? Install my app