Spike drink given to one politician (6)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
impale
'spike' is the definition.
('impale' can be a synonym of 'spike')
'drink given to one politician' is the wordplay.
'drink' becomes 'ale' (ale is a kind of drink).
'given to' is a charade indicator (letters next to each other).
'one politician' becomes 'imp' (I've seen this in other clues).
'ale' put after 'imp' is 'IMPALE'.
(Other definitions for impale that I've seen before include "go through with it" , "Skewer" , "Pierce with pointed stick" , "Fix as on a sharp stick" , "Kill by piercing with a sharp stake" .)