BOTH SIDES ARE SAME
ACROSS
1 Slippery slope for some Europeans (5) POLES*
4 Source of dehydration in Indian college slang (9) DESICCANT {DESI}{C}{CANT}
9 Vehicle turns silent after dropping Gussalufz for a court thing (7) RACQUET {CAR<=}{QUiET}
10 Hide from the boring king (7) LEATHER {LEA{THE}R}
11 No drug for setter in opening ceremony? (14) GROUNDBREAKING {NO DRUG}* [RA]
12 Resort to A.I. for hint (4) IOTA*
13 "Husbanding" includes our sniffing, licking, eating? (9) SAVOURING {SAV{OUR}ING}
17 See Vera going around incorporating French and being one irritating woman (3,6) EVE TEASER {SEE+VERA}* over {ET}
19 Tipping crown to one side, emperor makes love (4) ZERO {NERO with N turned to get Z}
22 "Page Six" airs all debauched arrangements stars are often found in (6,8) SPIRAL GALAXIES*
27 Reject birds from Spooner's rotating skewers (9) TURNSPITS (spurn tits to turnspits)
28 Arc of smoke over Vatican City (5) CURVE {CUR{V}E}
DOWN
1 Manoeuvre through atmosphere of anger involving top under secretary (9) PARAGLIDE {RAG{LID}E}<=>{PA}
2 Luck too, engineered an escalation in labour dispute (7) LOCKOUT*
3 React to glare from queen when wearing, say, pride shirt (6) SQUINT {S{QU}IN}{T}
4 Rising youngster humbles record holders (9) DATABASES {A TAD}<=}{BASES}
5 Crack that's very large and very close to fuselage (5) SOLVE {SO}{L}{V}{f...gE}
6 Delineating a landmark's edges, touch up sketch (5,3) CHALK OUT {A}{La...rK} in {TOUCH<=}
7 African crash anticipated, to an extent (7) ASHANTI [T]
8 Stretch limits in torture room (4) TERM {To...rE}{RooM}
14 They can change bad parts via laser surgery (9) VARIABLES {B} in {VIA+LASER}*
15 Judgment from authorities implicating outsiders initially seen suspiciously (4,5) GOOD SENSE {GODS} over {Ou...s} with {SEEN}*
16 Sleeping bags of top quality abruptly snagging? Peculiar (8) BEDROLLS {BE{DROLL}St}
18 Unkempt, i.e., run-down houses with fewer inhabitants (7) EMPTIER [T]
20 Current discharge reported in coach (7) EDIFIER (~eddy fire)
21 Analyse the speed of light; it's useful for measuring long distances (6) PARSEC {PARSE}{C}
23 Girl has one drink (5) LASSI {LASS}{1}
24 Egg with spoilage surrounding base (4) ROOT {RO{O}T}
Reference List
College = C, Indian = DESI, Slang = CANT, And in French = ET, Vatican city = V, Queen = QU, Shirt = T, Large = L, Very = V, Bad = B, Speed of light = C