Uncle travelling with fine guide (9)
I believe the answer is:
influence
'guide' is the definition.
(thesaurus)
'uncle travelling with fine' is the wordplay.
'travelling with' is an anagram indicator.
'uncle' mixed up with 'fine' gives 'INFLUENCE'.
(Other definitions for influence that I've seen before include "required to pull strings" , "Sway, dominance" , "Weight" , "Pull, clout" , "Effect" .)