Flow blue plate, any idea on the maker? English?

Warranted Staffordshire Clew(s)? Wouldn't call this flow blue, but just a dark blue transfer.

 

oh yeah good call. I couldnt tell if there was an "s" there in Clews or maybe its &?

 

This is a possibility: https://printedbritishpotteryandporcelain.com/who-made-it/clews-maker

 

I agree that this particular plate is more appropriately called transferware, not flow blue. Most flow blue are a kind of transferware but some were hand-painted. The blues of your transfer haven't "flowed" significantly enough to warrant the designation as flow blue.
Beautiful plate!