Banger's second taking long time touring America (7)
I believe the answer is:
sausage
'banger's' is the definition.
(I've seen this before)
'second taking long time touring america' is the wordplay.
'second' becomes 's' (common abbreviation**).
'taking' says to put letters next to each other.
'long time' becomes 'age' ('age' can be a synonym of 'long time').
'touring' is an insertion indicator (touring can mean going round).
'america' becomes 'usa' ('U.S.A.' can be a synonym of 'america').
'age' placed around 'usa' is 'ausage'.
's'+'ausage'='SAUSAGE'
(Other definitions for sausage that I've seen before include "BBQ food?" , "that should be edible" , "Tasty tube of meat" , "Minced meat and fat in cylindrical skin" , "Assuage (anag.)" .)