Hunt a boa slithering around German motorway (8)
I believe the answer is:
autobahn
'german motorway' is the definition.
(I've seen this before)
'hunt a boa slithering' is the wordplay.
'slithering' indicates an anagram (I've seen 'slithered' mean this).
'hunt'+'a'+'boa'='huntaboa'
'huntaboa' anagrammed gives 'AUTOBAHN'.
'around' is the link.
(Other definitions for autobahn that I've seen before include "way abroad" , "German or Austrian motorway" , "Motorway in Germany" , "It takes continental drivers" , "One way the Germans drive" .)