A more plausible candidate for linguistic form of matter predication is "This body is besouled".
This can hardly mean that form is its own essence.) Also, Z10, 1035b32, has form identified with essence and again the point cannot be that form is its own essence, for at 1035b14-l6 we read that the soul of living things is the ousia, form and essence of that kind of (i.e., besouled) body.