Sat D Telegraph No. 27,265

[bryand]

4d) Unexpectedly find posh chap his place for a takeaway. (4,3,4,4)
7d) Behind bars - dim person sadly getting one captured (10)
12d) Crazy reason to support and train leader (10)
17a) One could show a woman the time of her life (10,5)
All help greatly appreciated.

[boxtops]

4 Fish and chip shop (anagram of find posh chap his)

[Baldric]

7, Imprionsed

[ubasses]

4 fish and chip shop
7 imprisoned
12 locomotion
17biological clock

[boxtops]

7 imprisoned (anagram of dim person one)

[JoolsTwo]

4d Fish and chip shop
7d Imprisoned
12d Locomotive
17a Biological Clock

[dannyk13]

4d.Fish and chip shop (anagram)
7d.Imprisoned (anagram of dim person + i)
12d.loco motive)
17a.Biological clock

[bryand]

thank you all for your very informative answers.