Creature that goes around in prides (6)

I believe the answer is:

spider

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

'creature' is the definition.
(spider is a kind of animal)

'goes around in prides' is the wordplay.
'prides' anagrams to 'SPIDER'.
Though, I am not clear how the anagram is indicated.

'that' is the link.

Can you help me to learn more?

(Other definitions for spider that I've seen before include "Eight-legged creatures" , "one with money or house?" , "potter's accessory?" , "Web developer" , "Small creature" .)

I've seen this clue in the Evening Standard.

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