Sentence:  “Anthea hasn't a notion in her head but to vamp a lot of silly mugwumps. She's set her heart on that <WSD>tennis</WSD> bloke...whom the papers are making such a fuss about.” 
Meaning of the word marked with <WSD> tags:  A sport played by two players (or four in doubles), who alternately strike the ball over a net using racquets.