Very basic accommodation a draw: however, be careful buying it! (6,6)
I believe the answer is:
caveat emptor
'very basic accommodation' is the definition.
The definition and answer can be both related to communication as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
'a draw however be careful buying it' is the wordplay.
I cannot quite see how this works, but
'a' is within the answer.
'draw' could be 'tempt' (I've seen this before) and 'tempt' is found within the answer.
'it' could be 'e' ('e' can mean 'electronic' which is similar to 'IT') and 'e' is found within the answer.
This may be the basis of clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for caveat emptor that I've seen before include "at your own risk" , "Commercial advice" , "Warning to buyers" , "purchasing principle" , "Let the buyer beware (Latin)" .)