Azed 2,105

[Neveracrossword]

Have ground to a halt.
20 D. Little bird catching fish,to take advantage of ebb and flow (6,2words)
?in???
22 D. Accommodation in e.g. Sing Sing was fetid, top to bottom (5) ?a???

Sorry for having so few letters - the across clues are themed, not easy to pick up letters here and there.

[kayakamina]

22d tanks.....stank

[Neveracrossword]

Kaya...thanks - again.

[kayakamina]

Glad I could help.

How firm is the N you have?

[Neveracrossword]

The 'n' is a bit iffy.
Across entries contain two clues that overlap. My 'n' came from 25 A.
Old khan with a summons to parley,soldier's backing it (a contradiction)
c?a?a???????
I thought the first part could be 'chagan'/khan -hence the 'n'.

[barry123]

22) TANKS....stank

[kayakamina]

That's what I said.

[mahonia]

25a chamadementi: CHAMAde (cham is old khan +a) deMENTI (men + it reversed)

20d tide it

[edn17]

20d ti..t + ide = tide it

22d stank .. tanks (move the 's'}

[edn17]

1ac titan + ic = titanic
ic +eberg = iceberg
... is the preamble and should help explain the across clues!

[Neveracrossword]

Thanks for all the answers, though I did manage to get them myself - the pivotal moment came when I saw that 20 D would have ide/fish in it.