Solution to 1A has been deliberately left unsolved and is to be answered by a non-regular / novice commenter, with proper annotation. Those who have answered earlier in the week, please give others a chance.
Open for anyone to answer, if not solved by 1 PM.
ACROSS
1 Wait around to get in shortly into a U.S. city (7) W?C?I?A ()
5 Perceptible by touch - do wear a hat (7) TACTILE {T{ACT}ILE}
9 Top restaurant opens again - starts to cook (5) ROAST Acrostic
10 Bell tower affected by a river (9) CAMPANILE {CAMP}{A}{NILE}
11 Star in topless trailer, on the beach (9) AMPERSAND {cAMPER}{SAND} Incorrect definition
12 Air you get here is bottled (5) ETHER [T]
13 Excited before midnight (4) AGOG {AGO}{niGht}
15 Happy to get permit for this breed of cattle (8) GALLOWAY {G{ALLOW}AY}
19 Poet shuns cocktail for food (4) EATS kEATS
22 European city provides 50% of things you need to live... (5) ESSEN ESSENtials
24 ..Scent of an odd German in the neighbouring country (9) FRAGRANCE {FRA{GeRmAn}CE}
26 Making things hard for girl in London district (9) ANNEALING {ANN}{EALING}
28 Most unyielding - company set to change (7) FIRMEST {FIRM}{SET*}
29 One thrown out of a game (7) CANASTA {C{AN}AST}{A}
DOWN
1 Previously a spy agency came up in the capital (6) WARSAW {WAS}{RAW}<=
3 ...meanwhile, I'm off to Bury (5) INTER INTERim
4 Port in Alaska sees a variation between sides (9) ARCHANGEL {A}{R}{CHANGE}{L}
5 Intimidate if one is shy (5) TIMID [HIPS] Hidden, Indicator missing?
6 Tea for each one and one for shepherd (9) CHAPERONE {CHA}{PER}{ONE}
7 Exposed fire risk - hard for a European (5) IRISH {fIRe}{rISk}{H}
8 Rulers seem different including the queen (6) EMEERS {EME{ER}S*}
17 Law on working inside with radioactive elements (9) ACTINIDES {ACT}{INSIDE}*
20 Benefit the fat man inside to rise (6) BEHALF {FLA{HE}B}<=
21 Categories of information on time (6) GENERA {GEN}{ERA}
23 Instruments to scan sea floor, ultimately (5) SONAR [Tail Acrostic] Semi&lit
24 Stone or fine cotton? (5) FLINT {F}{LINT}
Reference List
Sides = R,L, Tea = CHA, Hard = H, Queen = ER, Information = GEN, Fine = F
