Last practice session for a seamstress? (5,9)
I believe the answer is:
dress rehearsal
'last practice' is the definition.
(I've seen this before)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for dress rehearsal that I've seen before include "Final play run-through" , "Strip show doesn't need such" , "last chance to get things right" , "last practice" , "trial run" .)