dt 25520 help please

[carlyon bay]

13d finished reading a mystery 6,4
11d major report on the circle line that suggests how it all started 3,4,6
10ac stupid person in prison,with support at home

[amsterdammer]

10ac
Staircase? St(a) ir (case)

[amsterdammer]

11d Big Bang Theory

[amsterdammer]

13d Closed book?

[carlyon bay]

thanks amsterdammer not to sure about 10ac as i have annihilate, anagram of hit an alien

[carlyon bay]

amsterdammer it has come to me 10ac is birdbrain regards carlyonbay

[amsterdammer]

Sorry I dont have a copy of the Telegraph Carlyon. So am working blind.
Used to love the telegraph,cryptic, till the wife made me change to the Express, which I found to easy!

[amsterdammer]

Yes, it fits fine ( funny staircase did also)!!

[Strix]

I really liked the construction of the answer of 11d!

Major = Big
report = Bang
The = The
Circle = o
Line = ry as in abbreviated railway

Good one!

[carlyon bay]

thanks strix for the explanation agree good one