Make oneself amusing, which camper may need at night (7)
I believe the answer is:
bedroll
'make oneself amusing which camper may need at night' is the definition.
Although both the answer and definition are singular nouns, I can't understand how they can define each other.
'make oneself amusing' is the wordplay.
I cannot really see how this works, but
'amusing' could be 'droll' (I've seen this before) and 'droll' is located in the answer.
The remaining letters 'be' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for bedroll that I've seen before include "Sleeping-bag" , "Pack of campers" , "item of camping gear!" , "(US) sleeping bag" , "retiring pack" .)