Times 25,279

[creamegg]

1a- who could adjust easel and tutu colour 8,7
t?u?b??? l?u?r?c

12a- scottish university withdrawing requirement concerning arts degree
?b?r?e?n

4d- society in which style provides entertainment
??o?

17d- plane standing behind a tower 5,3
?a??? s??

25d- nine in the morning, rising in full length garment
?a??

24d- yeast etc. with glycaemic index below whats enjoyable
??n?i

21a- berlin for example, confused net and gross
s?n?s???

23a- debauchee wicked, gives away rings to become penitent
?u???l

[Sam1960]

12a Aberdeen

[scorpiojo]

24 fungi

[scorpiojo]

25 maxi

[scorpiojo]

1 Toulouse Lautrec

[Prudie]

1a Toulouse Lautrec

[scorpiojo]

17 water ski?

[scorpiojo]

21 songster

[twofeathers]

21 songster

[scorpiojo]

23 rueful

[creamegg]

I think 17d letters are
?a?e? s?a

[scorpiojo]

Water ski

[scorpiojo]

4 show??

[creamegg]

If it is water ski that would mean that my big long one is wrong....
28a- trees almost die out, story about area becoming barren
d?s?r???i?a?i?n - I had disorganization

[scorpiojo]

Deforestation

[scorpiojo]

Sorry, ignore that ^

[scorpiojo]

Desertification

[boxtops]

desertification (the process of becoming a desert) ?

[creamegg]

fabulous thank you, any ideas on 19a?

[scorpiojo]

What's the clue please?

[creamegg]

oh sorry, thought i had posted it...
nuclear post war alliance forgetting its november and mike
?t?m?c