The Times August 1971

[LottieAnne]

This was a Championship Competition Crossword and I am getting nowhere with it. Can anyone help please?
9ac End of martinet confounded by egg-head (9)
14ac His houses are heavenly (10)
22ac Old as original sin, say? (8)
5d These shares for choice? (10)
13d Oyster out of order in this case (10)
15d Lake where Hannibbal broke up a thousand trainees? (9)
Thanks.

[shaneystar2]

9A Terminate ...anag of martinet +E head of Egg

[slaney]

5d Preference

[slaney]

22a Primeval

[shaneystar2]

15d Trasimene .... trainees with M

[swannbaker]

14 . Astrologer . Do you have any letters for 13 ?

[LottieAnne]

Thank you very much. Now perhaps I can get going.
13d - o - - - a - i - e
20ac Record sum made by Olympic athlete (10) - - - c - b - - - s. Any ideas?

[slaney]

13d Nominative?
20a Discobolos