Q: my ipad is clogged up with apps I've deleted

You don't have to create a new Apple ID. Delete your old backups from iCloud and iTunes and restore the phone to factory settings.

iCloud: Remove an iOS device backup from iCloud

Find and manage your iTunes backups - Apple Support

Use iTunes on your Mac or PC to restore your iPhone, iPad, or iPod to factory settings - Apple Support

minxclaire wrote:

 

my ipad air is clogged up with apps I've deleted, would factory settings and creating new icloud account free up space, wud I have to do same for itunes or can I keep itunes??

I'm not even sure what to that means?  Do you mean you just have a lot of un-installed apps listed in your purchased apps In the App Store?  If so, those are not clogging up anything - they aren't on your iPad at all and that list is just a list in Apple's web store service showing what you've purchased. You can hide apps if you use iTunes on your computer - Hide and unhide purchases in iTunes or iBooks on your Mac or PC - Apple Support if you si pky do t wish to see the full list all the time.

Note that if you do create a new Apple ID you will actually have to re-purchase all the apps you do have installed and use. Apps are permanently tied to the AppleID used to purchase them and cannot be transferred to another aAppleID.