After strong wine, a Liberal makes grand entrance (6)
I believe the answer is:
portal
'grand entrance' is the definition.
(I've seen this in another clue)
'after strong wine a liberal' is the wordplay.
'after' means one lot of letters go next to another.
'strong wine' becomes 'port' (strong type of wine).
'liberal' becomes 'l' (abbreviation).
'port' put next to 'a' is 'porta'.
'porta'+'l'='PORTAL'
'makes' acts as a link.
(Other definitions for portal that I've seen before include "Special website bringing together information from diverse sources in a uniform way" , "An imposing gateway" , "An imposing gate or doorway" , "An imposing door or gate" , "'Doorway, entrance (6)'" .)