Clera is a registered charity and is supported by the Arts Council of Wales and the Welsh Amateur Music Federation.
He has also been Head of Education and Culture for the Welsh Local Government Association, Chief Executive of the Arts Council of Wales, and latterly the Public Services Ombudsman for Wales from 2008–13.
Wales | New South Wales | Bachelor of Arts | Prince of Wales | Charles, Prince of Wales | Master of Arts (postgraduate) | National Endowment for the Arts | Second Vatican Council | University of New South Wales | Master of Arts | World Boxing Council | United States National Research Council | American Academy of Arts and Sciences | National Research Council | Electronic Arts | Privy Council of the United Kingdom | Newcastle, New South Wales | British Council | Museum of Fine Arts, Boston | South Wales | Wales national football team | Ryde, New South Wales | Governor of New South Wales | Council of Trent | Council of Europe | Wales national rugby union team | New South Wales Legislative Assembly | Academy of Motion Picture Arts and Sciences | Tisch School of the Arts | mixed martial arts |
Giardelli’s work is held in many collections including the Tate, the National Museum of Wales, the National Library of Wales, Contemporary Art Society of Wales, Arts Council of Wales, Museum of Modern Art Wales, Brecknock Museum, Tenby Museum and Art Gallery together with museums and galleries in New York, Dublin, Nantes, Bratislava and Prague.
He was the chairman of the Welsh Language Board between 1994 and 1999, and is a former member of the Arts Council of Wales and the British Film Institute where he was Chairman of Screen between 1992 and 1999.