Solved enroute to Las Vegas
ACROSS
9 Irritate with yarn on couple found by a sewer? (6-3-6) NEEDLE-AND-THREAD {NEEDLE}{AND}{THREAD}
10 Anyone upset, feeling a bit disturbed (7) ANNOYED {ANYONE}*{D
11 Get rid of old dog without new drug (7) EXPUNGE {EX}{PU{N}G}{E}
12 To separate from nurse, married doctor left, instead (9) DISMANTLE {L+INSTEAD}* over {M}
14 Enjoyed King's introduction to fiction with daughter (5) LIKED {LI{K}E}{D}
17 Offenders run into American vehicles (7) ABUSERS {A}{BUSE{R}S}
19 Engineer can't continue with IIT? That's huge! (7) TITANIC {CANT+IIT}*
21 London's subways going Westward, although less frequently (5) TUBES {BUT<=}{
23 Malai roti dexterously rolled in piece of newspaper (9) EDITORIAL [T<=]
25 We learn about renovation (7) RENEWAL*
27 Bird's egg is symbolised by Indian party (7) ROISTER RO(-o+i)ISTER
30 I fetch troupe that's absent (3,2,3,7) OUT OF THE PICTURE {I+FETCH+TROUPE}* [RA]
DOWN
1 Fashionable accountant for old South American (4) INCA {IN}{CA}
2 Auditor's arrogant tone (4) VEIN (~vain)
3 When kids are entertained by Spooner's time sheet (4,4) PLAY DATE (day plate to Play date)
4 Criminal also arrested in scrap (6) BANDIT {B{AND}IT}
5 Spread her enthusiasm to captivate fan (8) ADHERENT [T]
6 Quietly, after tea we finally left service area? (6) CHAPEL {CHA}{P}{
7 Bird heard in wind (4) TERN (~turn)
8 Tool essentially made razor safe, at last (4) ADZE {
12 Drawing an L/C, say (5) DRAFT [DD]
13 Firecracker nearly dropped under small boy (5) SQUIB {S}{QUI
15 Primarily, keyboards accommodating native Japanese, including script (5) KANJI Acrostic
16 Related to nobleman, upper class debutantes tucked into lentil dish (5) DUCAL {D{U
18 Getting closer to vault, secure your old secret (8) STEALTHY {S{
20 Revealing couple of poetic compositions wooing wife and sweetheart (3-5) TWO-PIECE {W} and {
22 Was what friends who came to the airport did (3,3) SAW OFF {WAS}* [RA & &lit]
24 To break into a luxury car takes up time (6) IRRUPT {1}{RR}{UP}{T}
25 King abdicating crown seized castle (4) ROOK (-t+r)ROOK
26 They're crazy people changing park's name in places (4) NUTS (-p+n)NUTS
28 Hoodlum smuggling heroin's a jerk (4) THUG {T{H}UG}
29 Does set up musical instrument (4) REED<=
Reference List
Old = EX, New = N, Drug = E, Daughter = D, Married = M, Run = R, American = A, Egg = O, Indian = I, Quietly = P, Left = L, Small = S, Boy = B, Your old = THY, Wife = W, Luxury car = RR(Rolls Royce), Time = T, King = R, Park = P, Name = N, Heroin = H