Lassie's bane (4)
I believe the answer is:
flea
(Other definitions for flea that I've seen before include "source of infestation" , "one is proverbially fit" , "Little jumper?" , "Jumping, blood-sucking insect" , "Little jumping insect" .)
I believe the answer is:
flea
(Other definitions for flea that I've seen before include "source of infestation" , "one is proverbially fit" , "Little jumper?" , "Jumping, blood-sucking insect" , "Little jumping insect" .)