Here are the possible solutions for they're constantly picking up clue
Answer
Clue
Relevancy
neatniks
Clue
They're constantly picking up
Definition
NEATNIK, a compulsively neat person
coral
Clue
Creatures that can't move but have sex by constantly and simultaneously ejaculating on a full moon once a year. It's called "broadcast spawning" and there are videos and they are glorious
Definition
a mass of marine animal skeletons
ears
Clue
They're used for picking things up
Definition
EAR, to plough or till
acat
Clue
Lead ___-and-dog life (constantly quarrel)
accio
Clue
“Harry Potter” spell useful for those constantly losing their keys
