1 Californian location of Disneyland (7)
5 Any of various metallic-looking sulphides, fool's gold (7)
9 1959 play by Arnold Wesker (5)
10 Former name of Ghana (4,5)
11 The value of the UK currency in terms of the Common Agricultural Policy (5,5)
12 High-security prison built in Belfast in the early 1970s to hold terrorists (4)
14 World chess champion 1969-72 (5,7)
18 French national anthem (12)
21 Mild yellow Dutch cheese made in balls (4)
22 The current king of Spain (4,6)
25 Gardens in the centre of Paris planned by André Le Nôtre (9)
26 1971 film about a black private detective, the theme music was a hit for Isaac Hayes (5)
27 Town in the province of Jaén, S Spain (7)
28 Wilfred of ---, son and heir of Cedric the Saxon (7)

1 Constellation, the Charioteer (6)
2 Portuguese islands in the Atlantic (6)
3 34th President of the United States (10)
4 Mister ---, myopic cartoon character (5)
5 The islands of Oceania east of 170ºE including Hawaii (9)
6 Important food plant Oryza sativa (4)
7 A late Greek personification of the goddess Sea (8)
8 London firm of fine art auctioneers founded in 1744 (8)
13 London prison which housed Dickens's father for example (10)
15 1934 novel by Robert Graves (1,8)
16 Large-holed Swiss cheese (8)
17 Name given to a native of the Orkney Islands (8)
19 Colour remover (6)
20 Fly which transmits sleeping sickness (6)
23 Second generation Japanese in US (5)
24 Writer of A Book of Nonsense mad Shakespearean King (4)