This one has given me insomnia.
AGONISE OVER PUTTING UP TENT (11)
The answer is a UK place name beginning with 'I'
I have tried to make place manes fit in with the clue - to no avail. For a list of Uk place names beginning with 'I' visit
http://freepages.genealogy.rootsweb.ancestry.com/~agene/locations/
Any help greatly appreciated. Going to bed now!