Chemist's response (6);
The concept of genealogy (6,2,10);
Sounds as if piece of wood's unchanging (7,8);
Machine outside a mysterious ridle (6);
Tool producing nothing (6,4);
It tells you how far,how far ... (4,7);
What BBC producers generate (13);
Tiny timepiece (6,5)
Attractive enclosure (8,5)
... This one has me stumped and so all suggestions very gratefully received.