taskmaster

Grateful Dead biographer David Browne wrote of Lesh, “Beneath that affable exterior lay a taskmaster and perfectionist.”

Mr Salmond described himself as a "tough taskmaster" when he was in charge of the government.

“There’s also a great moral compass, it’s very strong, and there’s loyalty too. Even though he might be a taskmaster, he’s very loyal to his team.”

Then, 50 men identically dressed in truncated gray suits and khaki overcoats entered in rows and, cued by the ringing of a taskmaster’s bell, performed workaday activities like typing and eating lunch.

And he as well is an absolute dogged taskmaster.