Spectator 2527

[johnpiper]

Good afternoon. Firstly there are 6 unclued lights that are anagrams of the protagonist of the title.
I have some conventional clued lights still to fathom
All help gratefully received.
41D Might former PM shut up (5) MA?S?
25A Ass losing energy by a group of plants (6) ??A?RA
20d key setter's turned up b end room perhaps (9 two words)
?I?O?MODE
1D Silver and green section around Indian paradise (6) SWA?G?

[Neveracrossword]

41 Think Theresa, Prime Minister+ a two-letter word meaning 'shut up'
26 A five-letter word for 'section' of grass, say, loses its last letter, then has the usual two-letters for 'silver' reversed. Indian paradise is the definition.

[Neveracrossword]

25 An odd-looking word for ass, donkey, loses its E, energy and has A added, 'by a', to give a group of plants.

[ProfessorMaisie]

20d ''setter's'' = I'm (rev = MI) + anag 'end room'.