One holding the record for a flight (5,3)
I believe the answer is:
black box
This clue could be a double definition.
'one holding the record' is the first definition.
Although both the answer and definition are singular nouns, I cannot understand how they can define each other.
'flight' is the second definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
'for a' acts as a link.
Can you help me to learn more?
(Other definitions for black box that I've seen before include "Electronic device in aircraft recording flight information" , "Aircraft's flight recorder" , "Flight data recorder" , "It contains information about an air crash" , "Plane's flight recorder" .)