3d) Collect for each fish that's imported (6) ?R???R
9a) Parsimonious small heartless guy grabs can (6) ?T?N?? - stingy?
21d) Remove odd parts of item inside and disappear (3,3)
24a) Unrefined new theory advanced for love (6) ????H?
25d) Unfinished journal turns up in surprise visit (4) ??I?
All help greatly appreciated.