Possible Clues:

• What repository provides; so great (anag.)
• What some people use an attic for
• Safekeeping at home or in the theatre
• Keeping in step, otherwise
• In which an old coach may keep gold safely?
• Longer-term laying up of leg cut by soldiers
• Chest function
• Available space for keeping things
• Cost of keeping in a warehouse
• An unused item may be placed in it