Born in Leytonstone, London, Clare played with Oscar Rabin on English radio in his early 20s. Following this, he played with Jack Parnell and then with Johnny Dankworth for an extended period in the 1950s and early 1960s. In the latter decade he played with Ted Heath and Ronnie Stephenson, and played in the studios as a member of Sounds Orchestral. He played drums for the Kenny Clarke-Francy Boland Big Band in 1963-66 when Clarke was unavailable. But from 1967 through 1971 (when the band folded) Clare was a regular paired with Clarke in what became a two-drummer band for performances, concerts, and at least 15 recordings issued by various labels. He also accompanied singers including Ella Fitzgerald, Tony Bennett, and Cleo Laine. On 5 December 1971 he did a concert at Queen Elizabeth Hall with fellow drummers Buddy Rich and Louie Bellson.
Clare also did extensive work for radio, television, film, and commercials.
With the Kenny Clarke/Francy Boland Big Band
- 17 Men and Their Music (Campi, 1967)
- All Smiles (MPS, 1968)
- Latin Kaleidoscope (MPS, 1968)
- Fellini 712 (MPS, 1969)
- Volcano (Polydor, 1969)
- Rue Chaptal (Polydor, 1969)
- All Blues (MPS, 1969)
- Clarke Boland Big Band en Concert avec Europe 1 (Tréma, 1969 )
- Off Limits (Polydor, 1970)
- November Girl (Black Lion, 1970 ) - with Carmen McRae
- Change of Scenes (Verve, 1971) - with Stan Getz