Not too hard, I found, solving time 17 mins
* = anagram < = reversed
ACROSS
6 ANDREI SAKHAROV (a risk a handover)* Nobel Prize winner (1921-1989)
9 S PINE L
10 G LEANING
11 PI (Locusts)OUS
13 LO (GI) CAL
14 SAFFRON WALDEN (New lads ran off)*
17 MASSEUR (us smear)*
18 SAD IS M (maiden – cricket)
20 BREATHER Double definition
22 PLA (alp<) CID El cid (from Spanish)
23 LAKE WINDERMERE (Wee male drinker)*
DOWN
1 B (RING) OFFin
2 W ILL
3 FANG hidden
4 SHEET G LASS (he gets)*
5 IRON I C
7 NAP PIES
8 V ENAL lane<
12 SCREE CH OW L L = lost (as in league tables)
13 LIN(g)ER g = sailing ultimately (last letter)
15 DADS ARMY (daydreams)* less e (first sign of enemy)
16 N ASTI ER
17 MOR(t)AL
18 S HANKS Cuts (of meat)
21 RENO Oner<
22 PE(t)ER