No 9747, Saturday 23 Jan 10, Nita Jaggi

Sorry for the delayed post as the site was down and I could log in only at 8:35 AM. Not adding many links and pictures to save time. 25A has me stumped.
ACROSS
7 - Pull the cart into position (8) – TRACTION*
9 - Loose jacket for an athlete (6) – JUMPER [DD]
11 - Blackmail the former supporter endlessly into confusion (9) – {EX}{TOR(-y)}{TION*}
12 - Place made famous by Gandhi’s Salt March (5) – DANDI [E]
13 - Alien is not a client I see at the health centre (6) – {CLI(-et-n)}{IC} ? (Correction - {CLIN(-et)*}{IC} - Thanks to Richard)
14 - Upright in posture (8) – VERTICAL [E]
17 - Reputation of an individual (9) – CHARACTER [E]
22 - Old leader in the morning goes to sleep in the dark anyhow removing the duvet on top (8) – {AM}{BED}{KAR(-d)*}
23 - It is the stroke at midnight! (6) – TWELVE [CD]
25 - Black tea grown in China (5) – C?N?O (Addendum - CONGO - See discussion in comments)
27 - Apt vendor fixes the writing desk (9) – DAVENPORT*
28 - Printing style allowed by Lawrence in the capital of Russia (6) – {LET}{TE}{R}
29 - Accountant is in to vote following an advertisement by a lawyer (8) – {AD}{VO{CA}TE}DOWN
1 - Exercise over a period of time (7) – STRETCH [DD]
2 - Up in command to hold a training academy at first in Norway (7) – {CAP}{TA}{I}{N}
3 - Hard layers at last of oil are dissolved in Germany (5) – {S}{OLI*}{D}
4 - An embankment (4) – BUND [E]
5 - Hungry chaps consumed the hot vegetable (7) - SP{IN}ACH*
6 - Supporter is sick to finally use this form of writing (7) – {BRA}{ILL}{E}
8 - Formed a bad opinion of a sailor up in the building (9) – {TAR}{NI<-}{SHED}
10 - Cause to disbelieve one cheat in trouble (7) – {UN}{TEACH*}
15 - Weak to do the new kind of martial art (9) – TAEKWO{N}DO*
16 - Disney city (7) – ORLANDO [E]
18 - Structure of the foundation stone contains copper and a bit of lead (7) – BAS{CU}{L}E
19 - Hard rubber at the tip of an elastic piece is over on the string (7) – {E}BONITE Anno pending
20 - Losing competitor in the borders of Russia is in loans perhaps (4,3) – ALSO {RA}N*
21 - Pays for the seats (7) – SETTLES [DD]
24 - Escape with the girl with determination in daytime (5) – {EVA}DE Anno for DE not clear
26 - Reported not to have been paid by us for the poems (4) – OWED(~ode)