Debt to income ratio and clearing debt - mortgage application

Jazz11

Unexpectedly a house has become available before we are 100% ready to apply for a mortgage.
We recently cleared some debt, however, our credit file will not be updated for another month. 
Will mortgage lenders take into consideration any recent debt cleared that is not updated on the credit file and therefore, look at the true debt to income ratio and not the out of date credit report?
What is the ideal DIR for first time buyers?
We have enough savings to clear the debt, and improve our DIR, however, the savings are earning 5-8% in interest and the debt is on 0% plus it won't benefit our credit report immediately. Will lenders take into consideration our savings v debt? 
We both have very good credit scores so our credit rating is not an issue.

CliveOfIndia

A lender can only base their (internal) scoring on factual data that's contained in your credit file.  Although do bear in mind that the free report you see is not updated in real-time, unlike the paid-for version that a lender uses.

The ideal debt-to-income ratio is obviously zero.  Any debt will be factored into a lender's affordability calculations, but each lender will have different lending criteria and a different target customer base.  So a level of debt that's considered affordable by one lender may price you out of the market in another lender's view.  But overall, the more you're able to reduce your debt, the better deal you're likely to be offered.

Savings are never taken into account by a lender, for the simple reason that you could, if you wished, go out tomorrow and blow the lot on a Ferrari.  That's one reason why savings are not recorded on your credit report.

And you can ignore the meaningless credit score you see on your report.  Each lender will have their own internal scoring algorithms which are tailored to their particular lending criteria and risk appetite.  The score they give you (which is confidential, commercially sensitive and is never seen by anyone other than the lender) will bear no resemblance whatsoever to the score dished out by the CRA.