2400: Unclued

All unclued entries are, unusually, not all unclued; all are different and there are no proper nouns. A repeated cryptic clue fixes not only once such entry, but also the central 2×2 block and, as a result, another such entry. Ignore one accent.
Doc writes: we welcome Cheese-Cracker to the compiling team.
 

Across

1    Son getting money from uncle having worked hard on source of new ideas
(14, hyphened)
9    New group of drinkers starts to fade in canteen (5)
11    Yes, fly over for a quick look (5)
12    F1 driver once heard making a bigger noise (6)
13    In time, shouting annoys non-EU nationals (5)
14    Depiction of Etruscan mythical beasts (8)
15    Joined name about to be circulated, getting distributed around (9)
17    This self-important bloke etc. agitated to cause bitchiness (7, two words)
20    Reconciled with daughter that’s made up? (6)
22    Nerds, mostly feeble, into society fillies (6)
27    Standing stones originally marked ruin of shrine? (7)
28    Record keepers judge cases involving instrument (9)
29    Infernal girl flirting when tango takes off (8)
31    Marry individual before end of June (5)
32    Gap made in cannula when centre is cleared out (6)
34    Gush by old master over framing (5)
35    Result of university being pushed in several directions (5)
36    Without notice, speech tries to stop genuine dry run (14, two words)
 

Down

1    After a drink, journalist is frustrated (8)
2    Approval – praise evident in mine (7)
3    Tiny family with supplement getting reported without respite (13, four words)
4    Black key – where E is found? (4)
5    Regard copies of Times dominating European organ (7)
6    Troublemaker wife ditched by author without love (6)
7    Born twins regularly lost in innocence (3)
8    Part of cod or salmon (6)
10    Escort damaged around roof – ugh (13, two words)
11    Porcelain that was notoriously fired (7)
16    Hurt coach located in part of hospital (5)
18    Princess Elizabeth has managed to lead English (5)
19    Rude Roman cardinals quashed by international collaborators (7)
21    Left after female in dump, causing ruffle (8)
23    Pavilion is evidently more than enough to sightsee (7)
24    Porn books secreted by Heather (7)
25    Called for an American beer having finished round (6)
26    Economist’s central ideas eschewing books (6)
30    Frank’s lavish with compliments (4)
33    Pizza delivery driver finally offered a port (3)
 
A first prize of £30 for the first correct solution opened on 8 April.