Help With Crossword

[johnT]

Help I'm stuck and I may have already got one wrong - which is not helping either clue.

17a. Ugh, don't you sound out surrounding in Parliament (8) ?O?G???T
I've considered CONGRESS but last letter T has to be correct in a different clue (Maybe a large building will support (5,2,8) - I have TOWER OF STRENGTH

16d. Received immigrant (8) ???O?G??
Confusingly the last letter would also be G if you believe my answer for a different clue 25a. Beneficial power (8) ?T?E???H - I have STRENGTH indicating 17d ends in G

Help

[roslyn251254]

17a doughnut ...anagram of ugh dony u

[Calibax]

17 Doughnut - anagram of UGH DONT U

[dannyk13]

Doughnut - ugh inside u(you sound) inside don't

[Calibax]

^Doughnutting is the practice of crowding round a speaker in parliament to make it seem busier (or to get onesself on TV!).

[fiction-factory]

Doughnut:
verb -nuts, -nutting, -nutted
3.
(transitive) ( informal) (of Members of Parliament) to surround (a speaker) during the televising of Parliament to give the impression that the chamber is crowded or the speaker is well supported

[sedge47]

16d incoming ??

[dannyk13]

16d.Incoming?