### Clue: Craft circles loch to test diver (9)
### Answer: GUILLEMOT 
 ### Explanation: Definition: diver
 GUILE(craft;artfulness) **containing**(circles) L(abbrev. for "loch") **plus**(to) M.O.T.(abbrev. for the Motor Ordinance Test, the inspection test for UK road vehicles).
Defn: … of the avian kind.