Stationed in east so push for strong drink (8)
I believe the answer is:
espresso
'for strong drink' is the definition.
(type of coffee drink)
'stationed in east so push' is the wordplay.
'stationed in' is an insertion indicator.
'east' becomes 'e' (synonyms).
'push' becomes 'press' (press can mean to force or push).
'e'+'so'='eso'
'eso' going around 'press' is 'ESPRESSO'.
(Other definitions for espresso that I've seen before include "Barista's beverage" , "Italian-style coffee" , "This may keep someone awake!" , "It's made by forcing steam through ground coffee beans" , "Coffee (S, not X)" .)