DM 13793

[bamberger]

10a Vigorous campaign for oil drilled by South America. C?e?a?e. Not sure about the lead C which comes from third letter of 5d With goals,this college could be teaching locals. T???n?c??. Technical fits but can't see wordplay.
16a German city restricted one friend belonging to it. ??n?c?p??. Municipal fits and ipal would be one friend but the rest escapes me.
23a Corrupt TV user abroad inspired head of broadcasting. ??b???t. No idea.
And finally 15d. 8's a clue to this songbird. Answer must be "pipit" but 8d is "beat it" so what is wordplay? Thanks

Poor effort on my part.

[mathsman]

15d To 'pip' is to beat.
5 is technical, the letters of which plus those of goals makes 'teaching locals'

[baitress]

16a - german city is Munic(H)
10a - technical. teaching locals minus
the letters of goals then scrambled

[mutt53]

10a cru sa de

[Infomaniac]

16a Munich restricted is Munic

[mutt53]

23a subvert

[baitress]

23a - subvert. anag of tv user + b(broadcasting)

[mathsman]

23 is subvert. It means to corrupt and 'tv user' abroad means anagram of tv user and head of broadcasting is b; inspired means inside.

[bamberger]

Thanks all -6d is uvula and not as I had it uvela (which is an anagram of value) so I'll forgive myself there.