Possible Clues:

• Exhausted on holidays having seen better days
• Is it the overcoat that's there that's too old?
• Dated pair in our neighbourhood originally
• Twain boards old vessel that's no longer fit for purpose
• O, run around a cuple that's old and finished
• It's no good any more
• Obsolete, dated
• Oh, you two are no longer of use to the British Navy
• Obsolete tour now reorganised
• Old-fashioned couple, after university, join the navy