The French wild goat, smooth in movement (6)
I believe the answer is:
legato
'smooth in movement' is the definition.
'legato' can be an answer for 'smooth' (musical term). I am not sure about the 'in movement' bit.
'the french wild goat' is the wordplay.
'the french' becomes 'le' ('the' in French).
'wild' is an anagram indicator.
'goat' is an anagram of 'gato'.
'le'+'gato'='LEGATO'
Can you help me to learn more?
(Other definitions for legato that I've seen before include "In a smooth and flowing manner (music)" , "running into each other" , "scored smoothly" , "Smoothly flowing (music)" , "Got ale (anag.)" .)