Prides displayed by creepy-crawly (6)
I believe the answer is:
spider
'creepy-crawly' is the definition.
(spider is a kind of invertebrate)
'prides displayed' is the wordplay.
'displayed' indicates anagramming the letters (letters displayed in another way).
'prides' with letters rearranged gives 'SPIDER'.
'by' acts as a link.
(Other definitions for spider that I've seen before include "Small creature" , "Insect-eater" , "Creator of web" , "Web designer?" , "A common arachnid" .)