Dumbell Front Raise: Face away from anchor point, stand up staight with arms forward, lower arms so you lean into the TRX, until your hands are by your legs, then raise your arms again up in the start position. Think of it like a reverse swimmers pull.
Calf Raise: This can be incorperated into most leg exercise. During a squat when you get up to the top raise onto your tiptoes, to advance do it during a single leg squat. It should be used in the sprinters start, at the top of the movement go onto your tiptoes.
If you want to isolate it, you could do single leg calf raises. Stand on one leg using the TRX for balance, and rise onto tip toe, and do the same for the other leg. If you have a step box, or can set up the trx over a stair way you could also do them on that, as a more advanced version.