### Clue: Hail enters two points in part of roof (5)
### Answer: EAVES 
 ### Explanation: Definition: part of roof
  AVE(greet,*hail*) in(*enters*) E&S($$e$$ast & $$s$$outh, *two* compass *points*)
Defn:  That *part* between the overhanging *roof* and outside wall of a building.  Convenient place for birds to build their nests, wasps alike, and bees their hives.  "Eavesdrop" derives from this word, as the water dripping from the eaves is in a position to listen to what's said in the building.