In Agatha Christie's "The Murder of Roger Ackroyd", the following passage appears:
Ackroyd has always interested me by being a man more impossibly like a country squire than any country squire could really be. He reminds one of the red-faced sportsmen who always appeared early in the first act of an old-fashioned musical comedy, the setting being the village green. They usually sang a song about going up to London. Nowadays we have revues, and the country squire has died out of musical fashion.
Now, presumably for a contemporary reader at the time (the book was published in 1926) this would be a very illuminating description. However, as a reader from 90 years in the future, I'm completely at a loss. What was the role of a "country squire", what did they generally do, what were the intended stereotypes that one might be? What was the style of an "old-fashioned musical comedy" and are there examples with a country squire I could look up?
My websearches for "Country Squire" have mostly things named after the phrase, such as the motorcar from 1950 and plenty of hostelry.