Listings omitting Hotel Emily, for one (6)
I believe the answer is:
watson
'emily for one' is the definition.
(actor Emily Watson is an example)
'listings omitting hotel' is the wordplay.
'listings' becomes 'What's On' (listings showing which events or programmes are on).
'omitting' suggests deleting specific letters.
'hotel' becomes 'h' (phonetic alphabet: alpha, bravo, charlie etc.).
'whatson' with 'h' taken out is 'WATSON'.
(Other definitions for watson that I've seen before include "Crick's fellow geneticist" , "Tom - - , golfer" , "Sherlock Holmes's 2 Down" , "Sherlock Holmes's doctor ally" , "Holmes' associate" .)