Nice MEPs sloshed for example (8)
I believe the answer is:
specimen
'example' is the definition.
(I know that specimen is a type of example)
'nice meps sloshed' is the wordplay.
'sloshed' is an anagram indicator.
'nice'+'meps'='nicemeps'
'nicemeps' anagrammed gives 'SPECIMEN'.
'for' acts as a link.
(Other definitions for specimen that I've seen before include "Something serving as an example" , "Example for the collector or scientist" , "Something used as an example" , "Person critically" , "Typical example - sample" .)