1. Rustic instrument not sounding? Needs internal fix (7) M*S**** 2. One and same again carried amongst additional part on Mansfield's cargoes (7) M***O*E 3. Spanish lady concealed water plant (7) ****L*A 4. Japanese artist's last sketch-agreed America gets one (7) ****S*I 5. One replacing duke in House being relative to 6 Across (the answer to which is Potto) (5) *O*I* 6. Lyricist's inspiration � a palm? (7) ****R*E