Thanks to all who gave this a go and congrats to those who finished. Just to wrap things up, here is the solution…
“Take away those pillows I shall need them no more”
Lewis Carroll, 1898
1.
Take away top brass in Moscow in grip of dissident outsiders, one of a pair (7) - Doublet
[r]OUBLE in DT
2. One shelled
those abandoning horse to quash organised riot (8) - Tortoise
(RIOT)* in T[h]OSE
3. Search
pillows essentially errant king (7) - Charles
(SEARCH L)*
4. Casually
I shall consumed by pains of Greek hero (8) - Achilles
I’LL in ACHES
5. Sharing central character fighter to kill eponymous heroine (5) - Alice
ALI and ICE (sharing the I)
6. Fish to join one who may
need a mitre (9) - Carpenter
CARP + ENTER
7. Sensen might so describe
his recurring
theme! (8) - Nonsense
‘Sensen’ -> ‘N’ ON SENSE
8. Associate of 6 returning
no end to certain rule (6) - Walrus
SUR(e) LAW reversed
9. Day cut short as Surrey bowled out by Cheshire village (9) - Daresbury
DA(y) (SURREY B)*
10. Aunt Pat
more befuddled by Brexit? (11) - Portmanteau
(AUNT PAT MORE)*
Some links I found useful:-
The Doublet
https://tinyurl.com/5yh8uj8f
…and here is the original Doublets competition puzzle
https://tinyurl.com/yc649ju2
Charles, Alice and Nonsense
https://en.wikipedia.org/wiki/Lewis_Carroll
Tortoise and Achilles
https://en.wikipedia.org/wiki/What_the_Tortoise_Said_to_Achilles
Walrus and Carpenter
https://en.wikipedia.org/wiki/The_Walrus_and_the_Carpenter
Daresbury
https://en.wikipedia.org/wiki/Daresbury
Portmanteau
https://en.wikipedia.org/wiki/Portmanteau
Thanks for playing!