American science probing nothing - it’s just a front (6)
I believe the answer is:
fascia
'just a front' is the definition.
I can't judge whether this defines the answer.
'american science probing nothing' is the wordplay.
'american' becomes 'a' (common abbreviation - e.g. in organisation names).
'science' becomes 'sci' (eg in 'poli sci' for political science).
'probing' means one lot of letters goes inside another (probe can mean to make a hole in).
'nothing' becomes 'FA' (slang term - sweet Fanny Adams).
'a'+'sci'='asci'
'asci' going within 'fa' is 'FASCIA'.
'it's' is the link.
Can you help me to learn more?
(Other definitions for fascia that I've seen before include "Detachable (mobile phone) front cover" , "panel" , "board above shop window" , "Shop sign" , "Signboard above a shop" .)