Possible Clues:

• Japanese matting cheers me
• Tasteless articles friend's acquired - one's made of matted straw
• Mat used for measuring Japanese rooms
• Honshu house mat
• Floor-covering is so long - one metre, about
• Not all lost at a mission that's under the Japanese
• Japanese straw mat; a mat, it (anag.)
• Said goodbye to me on the mat
• Jap. room matting
• Goodbye? I'm back! (Stalks over the floor)