Poet Stephen welcoming American hit Lingerie (9,4)
I believe the answer is:
suspender belt
'poet stephen welcoming american hit lingerie' is the definition.
I can't judge whether this definition defines the answer.
'poet stephen welcoming american hit lingerie' is the wordplay.
'poet stephen' becomes 'spender' (I've seen this in another clue).
'welcoming' indicates putting letters inside (in sense of 'inviting in').
'american' becomes 'US' (United States).
'hit lingerie' becomes 'belt' (I can't explain this - if you can you should believe this answer much more).
'spender' enclosing 'us' is 'suspender'.
'suspender'+'belt'='SUSPENDER-BELT'
Can you help me to learn more?
(Other definitions for suspender belt that I've seen before include "Undergarment" , "Item for holding up a woman's stockings" , "underwear" .)