Can I clear storage on a frozen iPhone? (Not enough storage space for fix in iTunes)

My iPhone 7 was full, but I kept deleting old stuff to get by. Tonight it kept closing apps as soon as they opened and after resetting it's frozen on "the white screen of death".

I tried the hard reset, but ended up having to connect to recovery via iTunes.

UNFORTUNATELY, it's trying to repair but I only have 1GB storage open and it needs 4.8GB to install and fix itself. ANY way to access a frozen phone and clear storage???!