16d) Lecturer recovered from dispute about a feature in quartz.
?O?EAR?OW (9)
Can almost work out the clue (Feature = ear, dispute= row, and lecturer recovered =don with first letter changed or perhaps reversed) but still cant find a word that fits!
Thanks bibblebub.............I have a Chambers, so should have spotted it! Any chance you could explain the wordplay, because my thoughts were clearly wrong!