Saturday Times Jumbo 882 cryptic

[davethewave]

Can anyone help please? I have managed to a lot of Saturday's Jumbo Times Crossword 882 (31 July): the ones that have beat me so far are below. If anyone can assist, I would be
grateful.
Many Thanks
David


10 down.
Having new leader, moved energetically and took stock (7)
I have R???L?S

12 down
People en masse characteristically seen in his study (11)
I have D???GRAPHER (demographer ???)

51 down
Pressure dramatist's under, it's said, when impatient (5)
I have ??H?W

14 across
Retreat from area by bluff without resistance (6)
I have ???R??

18 across
Random shape to west of river may be cruise missile (9)
I have D?????B?? (doodlebug? but why?)

42 across
Pick one of the letter sizes (5)
I have E?I?E

43 across
Pious Jew carries papers (5)
I have H?S?D (I thought this might be HOSEA, but obviously not with the last letter as D)

50 across
Splendid time abandoned under influence of LSD (7)
I have R???ING

[Touchstone]

42a) elite

[Oldred]

10d rustled
51d pshaw
43a hasid

[Oldred]

50a (t) ripping

[chelle7272]

18
Doodle = random shape
Bug = western Bug, a river in Ukraine

[bibblebub]

10 down RUSTLED (22a delia)
12 down DEMOGRAPHER
51 down PSHAW
14 across ASHRAM
18 across DOODLEBUG - random shape = doodle, river = Bug
42 across ELITE
43 across HASID
50 across RIPPING