1: Sadly, Tim agreed and left the country (9)
5: Authority, for example (sic) (3-2)
8: Pitching ideas to yes men (7)
10: Motel could host Optus, say (5)
11: We hear you require complete articles for this royal thriller. (7,6)
12: Non-clerical song (3)
13: Bloody bored inside (3)
14: Candidate has no time for ease, apparently (7)
17: Rose was refined, but would never make a silk purse (4,3)
19: Wander around inside territory (3)
22: Bug found in examination and in a full going-over (10,3)
24: Very bad, but permissible, to dismiss counsel, ultimately (5)
25: English scenes reproduced for 'Nature' (7)
26: Poor year after Eden lost (5)
27: Creates nucleotide sequences, written about time after time (9)