Eager for trailers in dark movie theatre again? (4)
I believe the answer is:
keen
'eager' is the definition.
(I've seen this before)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for keen that I've seen before include "Diligent" , "Razor-edged" , "devoted" , "Enthusiastic or sharp" , "mourn for the departed" .)