Be there – and listen (6)
I believe the answer is:
attend
I believe this clue is a double definition.
'be there' is the first definition.
(I've seen this before)
'listen' is the second definition.
(I know that attend is a more specific form of listen)
'and' is the link.
(Other definitions for attend that I've seen before include "visit" , "Completed" , "Pay heed" , "Being 16 [LISTEN]" , "Be present at, turn up" .)