Here I may leave empty (6,4)
I believe the answer is:
bottle bank
If this is the answer, I'm afraid I cannot explain it.
Can you help me to learn more?
(Other definitions for bottle bank that I've seen before include "Glass recycling store" , "Where glass containers can be recycled" , "Where to recycle glass" , "Depository for glass" , "Possibly dead men saved here" .)