Keen to be camping? (6)
I believe the answer is:
intent
'keen' is the definition.
(I've seen this before)
'be camping?' is the wordplay.
'be' becomes 'in' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'camping?' becomes 'tent' (I've seen this in other clues).
'in'+'tent'='INTENT'
'to' is the link.
Can you help me to learn more?
(Other definitions for intent that I've seen before include "Focused" , "Objective" , "Meaning -- determined" , "7 Purpose; fixed (upon)" , "Design, aim" .)