Every clue includes wordplay ignoring a single letter that would be needed for the answer, but also includes wordplay indicating a superfluous letter that is required by another clue.
All definitions are normal.
In this interface, the required (missing) letter should be entered in the "+" column, and the superfluous letter should be entered in the "-" column.
A
+
-
D
+
-
8
1
9
2
10
3
11
4
12
5
13
6
14
7
18
15
20
16
23
17
24
19
25
21
26
22