Strange claim about American in Miss Saigon, say (7)
I believe the answer is:
musical
'miss saigon say' is the definition.
(Miss Saigon is an example)
'strange claim about american' is the wordplay.
'strange' indicates an anagram.
'about' indicates putting letters inside.
'american' becomes 'us'.
'claim' with letters rearranged gives 'mical'.
'mical' going around 'us' is 'MUSICAL'.
'in' is the link.
(Other definitions for musical that I've seen before include "Cats perhaps" , "Cats maybe" , "Show with singing and dancing" , "Melodious" , "Drama where songs are more important than plot" .)