Spider, scorpion, etc (8)
I believe the answer is:
arachnid
(Other definitions for arachnid that I've seen before include "Harvestman, possibly," , "One of species including spiders, scorpions etc" , "Spider, mite, tick etc.; had in car (anag.)" , "Spider in a chard" , "Incy Wincy Spider, say" .)