Anonymous male moved west in hostility for convenience (7)
I believe the answer is:
amenity
'for convenience' is the definition.
(I've seen this in another clue)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for amenity that I've seen before include "Any time for convenience or pleasentness" , "Building's useful feature" , "Item provided to make life easier" , "asset to the community" , "Facility serving the public" .)