Parliamentarian drinks hot beverage after striking head (9)
I believe the answer is:
roundhead
'parliamentarian' is the definition.
(I've seen this before)
'striking head' is the wordplay.
'striking' becomes 'round' (I am not sure about this - if you are sure you should believe this answer much more).
'round'+'head'='ROUNDHEAD'
'drinks hot beverage after' is the link.
This may not be correct. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for roundhead that I've seen before include "Cavalier's foe" , "antimonarchist" , "Parliamentarian (hist.)" , "Supporter of Parliament during the English Civil Wars" , "Old soldier" .)