Underground home for bats (4)
I believe the answer is:
cave
(Other definitions for cave that I've seen before include "Warning - grotto" , "part of rocky coastline?" , "Beware" , "Natural underground space" , "Hollow in a cliff or underground" .)
I believe the answer is:
cave
(Other definitions for cave that I've seen before include "Warning - grotto" , "part of rocky coastline?" , "Beware" , "Natural underground space" , "Hollow in a cliff or underground" .)