No 12140, Wednesday 18 Oct 2017, Spinner

ACROSS
1   Conte goes berserk on winning first spot! (6) NOTICE {NOT{1}CE*}
4   It’s found in victim, returned by fake people (8) PLASTICS {SC{ITS}ALP}<=
10 Break instrument that's extremely troublesome (7) VIOLATE {VIOLA}{Tr...mE}
11 Set covered with Spinner’s essence (7) PLANTED {PLA{spiNner}TED}
12 Maiden with Spinner learns about buried treasures (8) MINERALS {M}{I}{LEARNS*}
13 Troop finally left mountain range having diverse elements (6) PLURAL {t..oP}{L}{URAL}
15 Receive appreciation to receive point! (4) EARN {EAR}{N} Something is not right here See comments
17 Extraordinary feat gets prize but drains energy, subsequently (9) AFTERWARD {FEAT*}{ReWARD}
20 Subdued journalism featuring in newspaper column (9) OPPRESSED {OP{PRESS}ED}
21 Fragment of the English alphabet, just the first half? (4) ATOM  A to M
24 Nation is standing by upset king involved in tragedy (6) ISRAEL {IS}{LEAR<=}

25 Recall associate after opening of real evidence (8) REMEMBER {Real}{Ev...e}{MEMBER}
28 Exact prices manipulated to acquire drug (7) PRECISE {E} in {PRICES}*
29 Quintessential Indian drink in small volume (7) CLASSIC {C{LASSI}C}
30 Made plans and consented to take classes at the end (8) DESIGNED {DE{c...eS}IGNED}
31 Intrinsically supersonic figure (6) PERSON suPERSONic

DOWN
1   Month when mob never groomed! (8) NOVEMBER*
2   Basically, tooting bell causes irritation! (5) THORN {To...g}{HORN}
3   Oversees locks after onset of crime (6) CHAIRS {Cr..e}{HAIRS}
5   Love is proclaimed subtly, starting from these parts of face (4) LIPS Acrostic
6   Son delights everybody inside with drinks (8) SWALLOWS {S}{W{ALL}OWS}
7   Shed light on player kicked out by publicity in cyberspace (9) INTERPRET {INTER{-n+pr}PRET}
8   Apply pressure on dishonest leader involved in shady deals (6) SADDLE {Di...t} in {DEALS}*
9   Swimmer, initially jittery, gets mischievous on drinking a bit of laced yoghurt (9) JELLYFISH {Ji...y}{EL{La..d}{Yo...t}FISH}
14 Backing due to respect, even as victory makes way for failure (9) REFERENCE RE(-v+f)FERENCE
16 Those who write on content from fabulous retro period making a comeback (9) REPORTERS [T<=]
18 Mutating bird gene creating issues (8) BREEDING*
19 A heinous crime by an inhabitant of Las Vegas! (8) AMERICAN {A}{CRIME*}{AN}
22 Lowered pipe designed to fit between ends of deckbed (6) DIPPED {PIPE}* in {De...eD}
23 Turned into insect employing charms regularly! (6) BECAME {BE{ChArMs}E}
26 Low frequency’s primarily important, the fundamental thing! (5) BASIS {BAS{Im...t}S}
27 You and I maintain two women! (4) WEVE {W}{EVE}

GRID