You would need to check our guidance here to which cases you qualify for split.
You would need to be classed as UK tax resident in the first instance to consider split year.
If you are classed and non UK resident then you only need to declare the income from when you arrived in the UK.
RDR3 Statutory Residence Test
Residence: The SRT: Split year treatment: Contents
You will need to refer to this helpsheet to determine who has the taxing rights for your income if you are classed as tax resident in both countries.
If you are reporting the income to us then this will go on the self employment section with any tax paid being entered on the foreign section of the return so that you can clam foreign tax credit relief.
You would be correct to select no for the question "were you unable to transfer some or all of your overseas income to the Uk".
If you have a zero in your tax calculation then if go select next after print and view your full tax calculation you can amend the figure from zero to the amount of foreign tax credit due.
Foreign tax credit relief applies to the income that you are delcaring both the the UK and Italy.