So cheap as to preclude profit? (7)
I believe the answer is:
bargain
'so cheap' is the definition.
'bargain' can be an answer for 'cheap' (sold at a bargain price). I am unsure of the 'so' bit.
'to preclude profit?' is the wordplay.
'to preclude' becomes 'bar' (I've seen this in another clue).
'profit?' becomes 'gain' ('gain' can be a synonym of 'profit').
'bar'+'gain'='BARGAIN'
'as' acts as a link.
Can you help me to learn more?
(Other definitions for bargain that I've seen before include "Thing bought cheaply" , "special deal" , "Count on" , "Cheap offer" , "value for money" .)