Moving abroad, the French must be lovely (8)
I believe the answer is:
adorable
'lovely' is the definition.
(synonyms)
'moving abroad the french' is the wordplay.
'moving' indicates anagramming the letters (letters are moved around).
'the french' becomes 'le' ('the' in French).
'abroad' anagrammed gives 'adorab'.
'adorab'+'le'='ADORABLE'
'must be' acts as a link.
(Other definitions for adorable that I've seen before include "Very charming and attractive" , "Worthy of worship" , "worthy of love" , "Inspiring great affection" , "Such as excites loving admiration" .)