1 Heartless porn or great art? (6)
2 In case of recapture, documents are carried (4)
3 Activist responsible for first signs reading No Access – Zone Interdite (4)
4 As the World Turns returns – teachers are gutted (4)
5 Colonnade somewhat appeals to aesthetes (4)
6 W-what's tough enough to withstand intense heat? (8)
8 This is about wage adjustments in controversial press statements intended for a wider audience (5,8)
12 My ascending bird (3)
14 Speak offensively and answer misleadingly, hiding name (5)
15 Turns loud, showing insolence and a bit of spite (5)
17 Principles extremely 4 here in Rome (5)
18 Argued about word having English content (5)
20 Have experienced stigma getting cheaper products (3-5)
22/27 Extremely unpleasant to be taken in by nasty chap when initially seen as childish (3,4)
24 Meagre fodder of international entente (6)
26 14 regularly rose for emperor (4)
27 See 22
28 Get across, regularly dropping Toby jugs (4)
29 Floor patterns inverted in common illusion (4)