But Patrick went to the Row for an extended period of time? He wasn't there just to learn how to fit a suit. He learned how to make a suit. If he wanted to, he could make suits for all his clients, which makes him a tailor. Just because he decides not to make the suit doesn't relinquish his title as a tailor.
My example was a bit extreme, but in this instance, I think it is accurate for Patrick to call himself a tailor.
I was referring generally to anyone not Patrick, though he worked with a shirt maker in Jermyn Street not with a tailor on the Row, so the correct term would be shirt maker if you want to be technical. So the term P.Johnson tailors is correct, because as a company they still employ tailors to make the actual clothes to ones measurements, but the person fitting those clothes is in this case not a tailor.
Heres some homework for you - http://www.smh.com.au/executive-style/style/in-the-hands-of-a-few-good-men-20120718-22adw.html
Nope it's not as cutaway. I don't know how it bends down to be honest, good genetics?