My guess is that you are trying to get the highest rate from the cash that you are keeping in a savings account. My suggestion is that instead of trying to maximise your savings in one account with one provider and use another for your card, it makes sense to bring all your financial transactions under one roof and, where necessary, manage them online.
First off, you should be looking to a credit card like the Post Office or Nationwide ones, which do not charge a 2.75% fee every time you make a purchase abroad. That alone is worth a small fortune if you are travellign abroad for a whole year.
Also, as it is likely that you will be making cash withdrawals using your card (unless you were planning to keep a current account to do that from) it is useful to know that Nationwide's "payment hierarchy" allows you to pay off your most expensive debts first - cash withdrawals - unlike most other credit card providers.
With Nationwide, you can also view credit card/bank account/savings account statements online, which means you could transfer money between the various accounts every month to settle card debts.
OK, their savings rate is not the highest at 5.5% AER. So if you prefer a higher rate, another option might be to keep an online savings account wherever you want (as long as you can switch money out of it online). You then set up a current account and a credit card with Nationwide. Once a month you check your credit card bill and transfer the money to Nationwide's current account. from there, a direct debit pays off the crtedit card bill.
You still have to log on to your credit card and savings accounts once a month, but that's not too much hassle, is it? Ten minutes well spent...
Or, if you want, you can view a credit card statement from Nationwide and transfer money directly to it from your savings account. You choose...