mondegreen=phrase heard wrongly
m=mother
un done=onde
inexperienced=green

The cryptic police will probably review this

Nice one manxman. Can't talk now - I'm heading out of town before they come knocking!

Have this belt before I leave: ===[**WCF**]===

Phrase heard wrongly left mother undone and inexperienced (10)

I don't know how manxman solved this one!

Sorry Rog, but the word "undone" does not indicate an anagram of the word "done".

And yet, you warned us in advance. I think one lash will do. This time.

Thank you UW. Only one lash Let off easy

A girl put on weight but knocked back drink (9)

margarita?
marg = gram (weight knocked back)
a rita = a girl

"put on" serves as position indicator?

Too good Denis
Have a drink to celebrate receiving this ===[**WCF**]===

Thanks MxM.

Spy on wild super date! (1,8)

Day#1 clue: person's name (1 = initial, 8 = last name)

Changing to:

Former head spy on wild super date (1,8)

direct = former head spy

Hmmm...that was inspired by recent hot news...
Initial is D: D -e---e--

D(avid) Petraeus

anag. of super date

YA! Here's a super belt for you: ===[**WCF**]===

Using his full name:

Questionable varied updates on old CIA boss! (5,8)

Thanks, Denis!

Devil posed with a nurse's cap (5)

satan
posed=sat
a
nurses cap=n

Try posing with this, manxman! ===[**WCF**]===