Are they tricky for actor to learn? Too bad (4,5)
I believe the answer is:
hard lines
This clue is a double definition.
'are they tricky for actor to learn?' is the first definition.
(actors learn lines)
'too bad' is the second definition.
(both can mean 'bad luck')
(Other definitions for hard lines that I've seen before include "Script full of tongue-twisters?" , "Tough" , "Bad luck" .)