Drunk rang Hove, showing the after-effects of too much alcohol (8)
I believe the answer is:
hangover
'the after-effects of too much alcohol' is the definition.
(I've seen this before)
'drunk rang hove' is the wordplay.
'drunk' is an anagram indicator.
'rang'+'hove'='ranghove'
'ranghove' with letters rearranged gives 'HANGOVER'.
'showing' acts as a link.
(Other definitions for hangover that I've seen before include "effect of too much booze" , "After-effects of a binge" , "After-effects of drinking too much alcohol" , "Consequence of too much booze the night before" , "Unpleasant aftermath of drinking binge" .)