Being in camp, perhaps, on the icy borders is awful (6)
I believe the answer is:
entity
'being in' is the definition.
'entity' can be an answer for 'being' (I've seen this before). I'm unsure of the 'in' bit.
'camp perhaps on the icy borders is awful' is the wordplay.
'camp perhaps' becomes 'ent' (I can't justify this - if you can you should give a lot more credence to this answer).
'on' is an insertion indicator.
'the' becomes 't' (the is pronounced as a 't' sound in some dialects).
'borders' suggests removing the centre (only the edge or border letters remain).
'is awful' is an anagram indicator.
'icy' with its centre removed is 'iy'.
't'+'iy'='tiy'
'tiy' with letters rearranged gives 'ity'.
'ent' inserted within 'ity' is 'ENTITY'.
Can you help me to learn more?
(Other definitions for entity that I've seen before include "Essence, existence" , "Individual being" , "It exists as a seperate thing (6)" , "Something existing in its own right" , "Something with independent existence" .)