Amazed a bridge player in front of a packed crowd (9)
I believe the answer is:
awestruck
'amazed' is the definition.
(thesaurus)
'a bridge player in front of a packed crowd' is the wordplay.
'bridge player' becomes 'west' (name given to one player in the card game bridge).
'in front of' is a charade indicator (letters next to each other).
'a packed crowd' becomes 'ruck' (term for a crowd of people).
'a'+'west'+'ruck'='AWESTRUCK'
(Other definitions for awestruck that I've seen before include "Filled with wonder" , "Showing a feeling of wonder and dread" , "overcome by wonder" , "Filled with amazement" , "Fearful" .)