1. Study evaluates characteristic marine area (7,6)
??N???? / ??????
2. Fiction adapted, say, for the stage (3,7,4)
??? / ???S??? / S???
3. Tree America backed for inclusion in keel (9)
C???A???A
4. Son's missed out in new Honours List - it's the calculus (7)
??O???H
5. Circumstances dictate what wine-making does (5,4)
N???? / ????