[3] In May 1901 he appeared at the Royal Opera House, Covent Garden, as Verges in Charles Villiers Stanford's operatic version of Much Ado About Nothing.
The following year he joined Herbert Beerbohm Tree's company at His Majesty's, playing Simple in The Merry Wives of Windsor, Starveling and Quince in A Midsummer Night's Dream and Adam in As You Like It.
[3] After engagements on tour and in the West End he joined the Garrick Theatre company, under Arthur Bourchier, in February 1904, and appeared there in roles ranging from the Rev Aloysius Parfitt and Harlequin in The Fairy's Dilemma to Old Gobbo in The Merchant of Venice.
After a round of T. W. Robertson in London, he returned to the US in The Inferior Sex, subsequently touring with Olga Nethersole, playing Cayley Drummle in The Second Mrs Tanqueray, and M. Duval in Camille.
[3] Clarence reappeared in London, at the Savoy in June 1911, playing Lord Feenix in Dombey and Son, and subsequently Jingle in Two Peeps at Pickwick.
These included a second run as the Inquisitor in Saint Joan (1931), Mazzini Dunn in Heartbreak House (1932), George Booth in The Voysey Inheritance (1934) and Sir William Gower in Trelawny of the 'Wells' (1938).