Former PM, not one consuming chicken and wine (7)
I believe the answer is:
rhenish
'wine' is the definition.
(I've seen this before)
'former pm not one consuming chicken' is the wordplay.
I cannot really understand how this works, but
'one' could be 'i' (Roman numeral) and 'i' is located in the answer.
'chicken' could be 'hen' (hen is a kind of chicken) and 'hen' is found in the answer.
This may be the basis of the clue (or it may be nonsense).
'and' acts as a link.
Can you help me to learn more?
(Other definitions for rhenish that I've seen before include "eg Hock" , "from German river" , "Hock - relating to a European river" , "Of the river Rhine" , "white wine" .)