No 11469, Monday 10 Aug 2015, Incognito

Links galore in the blog today.

ACROSS
1   Hat worn by sober Romeo and Oscar (8) SOMBRERO {SOMBRE}{R}{O}

5   Taint in having astigmatism (6) STIGMA [T]
10 Turn, grin awkwardly and dismantle (5) UNRIG {U}{GRIN*}
11 Main river flows in this city (9) FRANKFURT [CD]
12 Covers battlefields (6) FRONTS [DD]
13 Cabal one supported had creatures! (8) ABALONES [T]

15 A comb contains nothing to measure volume (5) COOMB {CO{O}MB}
17 English poet, Pope and Macedonian king (9) ALEXANDER [MD]
19 Tattoo shop issued a circular letter and made a copy (9) PHOTOSTAT {TATTOO+SHoP}*
20 Erasable programmable read only memory was created by a pro(me!) (5) EPROM*
21 Climb up again when Sappers & Army Service Corps finish (8) REASCEND {RE}{ASC}{END}
23 Ha! Told atrocious and hackneyed stuff (3-3) OLD-HAT*
27 Melting plastic in South Korea? Funny, sort of ... (9) SLAPSTICK {S{PLASTIC*}K}

28 Little Augustus went back around Hospital Road to raise shoulder (5) SHRUG {S{H}{R}UG<=}
29 Naturist in birthday dress (6) NUDIST [DD]
30 Place in your head where you might find a hammer, an anvil and a stirrup (5,3) INNER EAR [GK]

DOWN
1   A kind of movie about a kind of tobacco (5) SNUFF [DD]
2   After naval commandos fire the first shell, Petty Officer holds old port for an explorer (5,4) MARCO POLO {MARCOs} {P{O}{L}O}
3   Every cruciverbalist must have his book, perhaps, or get baffled (5) ROGET* Semi&lit
4   Right behind the boat (4) RAFT {R}{AFT}
6   Have a day off and be gone (4,5) TAKE LEAVE [DD]
7   Elementary! Particle is found by lounging around without gin (5) GLUON LOUNginG*
8   Ruminates about blood component containing antibodies (9) ANTISERUM*
9   Sliced bread dipped in bath gives halitosis (3,6) BAD BREATH {BA{D BREA*}TH}
14 This company lost stock at the Boston tea party (4,5) EAST INDIA [GK]
15 Decorate an elephant when French capital is invested in acorn processing instead of the Rand (9) CAPARISON {CA{PARIS}ONr*}

16 Record infringements on furniture in library (9) BOOKCASES {BOOK}{CASES}
18 Black stallion is a surprise winner (4,5) DARK HORSE {DARK} {HORSE}
22 A drawback to get a prize (5) AWARD {A}{WARD<=}
24 Cotton fabric from erstwhile Lille (5) LISLE Anno not clear. Erstwhile as Homophone indicator? [GK] See comments
25 Capt. Pataudi, Tipu Sultan and Gen. Niazi's animal? (5) TIGER [MD]
26 Similar to a relative (4) AKIN {A}{KIN}

GRID