John le Carre wrote fiction espionage novels. Espionage novels are novels which focus on a spy's life or spying in general. His most famous work is The Spy That Came In from the Cold.
The definition of a ditz is slang for someone who is silly or who seems to have scattered thinking. An example of ditz is a silly dumb person who just giggles all day. ditz. Slang a person thought of as being flighty, eccentric, silly, etc. ditz.
There is a wide variety of diuretics doctors may prescribe to patients, though HCTZ is the only diuretic that is known to lower blood pressure and flush out excessive body fluids at the same time. The heart condition will get worse if blood pressure will not be controlled.