Some answers are jumbled and shorter than the grid length.
They have to be made whole by using redundant words appearing in some other clues.
I have about 10 remaining.
But here are 4 that may have at least one normal clue.
19. Cut back to limit a nuclear byproduct (7) ??ST???
27. Quick with answer having recalled last one (7) ?E??VI?
6. Bird of prey flying at line (7) ???N?W?
Could be Barnowl? But how?
17. Old woman filling a job in the old country(7)
??A??N?
Thanks for the hints.