### Clue: Knight maybe sly gad-about (6)
### Answer: GLADYS 
 ### Explanation: Definition: Knight maybe
 **Anagram of**(about) SLY GAD.
Defn: An example of which;maybe is Gladys Knight, soul singer, who started out with the Pips.
Thatcher at one time worked for J.Lyons but not as a Gladys, the name once for the waitresses that worked in the company's teashops and cafes.