Special, Sunday 19 Jun 2016, Buzzer

Three answers per commenter (Annotations compulsory) as usual till 6 PM
Please provide all your answers in one comment.

Buzzer S

14 clues are undefined but have a commonly placed connection. Rest of the clues are normal.

ACROSS
1   Melancholic air, often engrossing (5)
4   Composition of Schubert captivating Austria (9)
9   New coin beginning to take off in continent (7)
10 Automobile club shop around for a wagon (7)
11 Family tax at present front to back (9)
12 Positive assertion from a male? (5)
13 Surely an easy thing being a city careerist (6)
15 Running out of the bus shelters (8)
18 Fish in stream cut down (8)
19 One's wife, American beauty pageant winner (6)
22 Like a young lass from the east (5)
24 Banal tour all over the place (4-5)
26 Chemical substance split over time (7)
27 Hear witness so nauseous (7)
28 Kneading dough is a mess at first (9)
29 Driver taking assumed name (5)

DOWN
1   Argument against railway carrying a thousand (7)
2   About to enter pub of Peruvian origin (5)
3   Uncontrollable sobs is one persistent complex (9)
4   A light pulse holding firm (6)
5   Crudely trace any curved shape (8)
6   Article after article covering rising trouble (5)
7   Limits of earth calculated primarily through data (9)
8   Seats in House of Representatives held by distinct characters (7)
14 Heartless python swallowed inside gradually, thrashing nag (9)
16 Surfing apparatus said to include large black paddle (9)
17 To a degree breaking resolution pays off (8)
18 It helps turn out delightful crumb cakes (7)
20 Small toy for a child, head of rugby football player (7)
21 More than half of Nauru welcomed association (6)
23 Expenditure while away (5)
25 Imagine stupid conservative replaced by leader of Nationals (5)

Across Lite version can be accessed at BUZZER S

Enjoy.