Tavern's opening has beer enthusiasts returning — it's over the road? (6)
I believe the answer is:
tarmac
'it's over the road?' is the definition.
(tarmac covers roads)
'tavern's opening has beer enthusiasts returning' is the wordplay.
'opening' indicates taking the first letters.
'has' says to put letters next to each other.
'beer enthusiasts' becomes 'CAMRA' (Campaign for Real Ale).
'returning' says the letters should be written in reverse.
The first letter of 'taverns' is 't'.
'camra' written backwards gives 'armac'.
't'+'armac'='TARMAC'
(Other definitions for tarmac that I've seen before include "Planes taxi on it" , "Airport runway(s)" , "Road paving material" , "Surface material of tar and broken stone" , "Trade name for road surfacing material" .)