Bare Bones...again

[Babz]

Got the other five done but as usual the BB is causing trouble... Can anyone help please with:
4D Money put up by colleague, not upper class one, which could teach you a lesson or two E?A???L?E?E (two words)
5D Turn excavations into aircraft design aids
W?E???N?E?S (two words)

Also I don't understand how but is 8D Sand?

Thanks in advance :-)

[kayakamina]

4d Eton Collar

5d Wind Tunnels

8d Nemo....Anag omen

[kayakamina]

Sorry college not collar !

[Babz]

Aha, we had a wrong answer in 9A which made all the difference. I thought about Captain Nemo but he didn't fit ...at the time. He does now.
Thanks very much once again, Kayakamina. All finished for today

Babz