Serpentine import the German's brought in (10)
I believe the answer is:
meandering
'serpentine' is the definition.
(thesaurus)
'import the german's brought in' is the wordplay.
'import' becomes 'meaning' ('meaning' can be a synonym of 'import'**).
'the german' becomes 'der' ('the' in German).
'brought in' means one lot of letters goes inside another.
'meaning' enclosing 'der' is 'MEANDERING'.
(Other definitions for meandering that I've seen before include "Tortuous" , "not proceeding directly" , "Winding, rambling" , "Aimlessly wandering" , "not in straight line" .)