We French have savvy (4)
I believe the answer is:
nous
'savvy' is the definition.
(I've seen this before)
'we french' is the wordplay.
I cannot quite understand how this works, but
'we' could be 'us' and 'us' is found within the answer.
The remaining letters 'no' is a valid word which might be clued in a way I don't see.
This may be the basis of clue (or it may be nonsense).
'have' acts as a link.
Can you help me to learn more?
(Other definitions for nous that I've seen before include "FT in Paris, say" , "Gumption" , "Knowledge, experience" , "we recognised in Nancy" , "We, in France, have common sense" .)