Compost bin helper (4)
I believe the answer is:
worm
(Other definitions for worm that I've seen before include "Annelid" , "Insect larva" , "one leaving cast" , "Animal with no bones or limbs - it may turn" , "Creeping invertebrate" .)
I believe the answer is:
worm
(Other definitions for worm that I've seen before include "Annelid" , "Insect larva" , "one leaving cast" , "Animal with no bones or limbs - it may turn" , "Creeping invertebrate" .)