No 12835 , Saturday 18 Jan 2020, Lightning

ACROSS

1   Give wrong advice to lady missing second mentor (8) MISGUIDE {MISs}{GUIDE}
5   Afraid of religious chapter moving back (6) SCARED {S(+C)A(-c)RED}
9   Understood dealer is worried (8) REALISED {DEALER+IS*}
10 Grand diamonds replaced — mess up package (6) BUNDLE {BUN(-g+D)LE}
12 Compare love note (5) LIKEN {LIKE}{N}
13 Abbreviated tenders at first held out to be rewritten (9) SHORTENED {TENDERS+Held+Out*}
14 Not doing well, enter average stronghold (6) PILLAR {P{ILL}AR}
16 Dish with gold at a stable level (7) PLATEAU {PLATE}{AU}
19 Rule curtailed military unit (7) REGIMEN {REGIMENt}
21 Humble manner of saint (6) MODEST {MODE}{ST}
23 Conflict where unionist usurps one secret agreement (9) COLLUSION {COLL(+U-i)SION}
25 Primarily obese, survive on fruit (5) OLIVE {Obese}{LIVE}
26 Free a French isle captured by one that protects (6) UNPAID {UN}{PA{I}D}
27 Clear and well-organised timetable (8) CALENDAR {CLEAR+AND*}
28 European left regular cricket side (6) ELEVEN {E}{L}{EVEN}
29 Great one, he transformed a nation’s mark of history (8) HERITAGE {GREAT+I+HE*}

DOWN
1   Man boxes royal black stone (6) MARBLE {MA{R}{B}LE}
2   Stop splitting cocktail having a fizz (9) SPARKLING {S{PARK}LING}
3   Peacekeepers return leader to league (5) UNION {UN}{NO 1<=}
4   Cadres seriously helping to make furniture (7) DRESSER (T)
6   Tennis arena with three feet of open space (9) COURTYARD {COURT}{YARD}
7   Communication device missing one new element (5) RADON {RADiO}{N}
8   Segment of accord read fully is scary (8) DREADFUL (T)
11 Upset with detailing of two door car (4) COUP {COUPe}
15 One rodent nearly breaking cable of luxury car (9) LIMOUSINE {L{I}{MOUSe}INE}
17 Company that set up a rule? (4,5) EAST INDIA (CD)
18 Rule out (caught) in the beginning (8) PRECLUDE {PRE{C}LUDE}
20 Nothing around a dead skin (4) NAIL {N{A}IL}
21 Order partner to accept non-disclosure agreement (7) MANDATE {MA{NDA}TE}
22 Ruling royal engineers followed last month (6) DECREE {DEC}{R}{EE}
24 Slip by line at vaulted recess (5) LAPSE {L}{APSE}
25 Daggers one bishop evidently left inside at first (5) OBELI (Acrostic)

Reference List

Second=S, Chapter=C, Grand=G, Diamonds=D, Note=N, Gold=Au, Saint=St, Unionists=U, One=I, A French=Un, Isle=I, European=E, Left=L
Royal=R, Black=B, Peacekeepers=UN, Leader=No 1, New=N, Caught=C, Non-Disclosure Agreement=NDA, Royal=R, Engineers=EE, Line=L

Colour/Font Scheme

Definition, Solution, Component letters, Embedded links, Theme word,  Anagram Indicator, C/C indicator, Reversal Indicator, Hidden word Indicator, Letter Pick indicator, Deletion Indicator, Homophone Indicator, Movement Indicator, Positional Indicator, Substitution, Indicator, Link/Connector, Extraneous