Poet making me snore (7)
I believe the answer is:
emerson
'poet' is the definition.
(US writer Ralph Waldo Emerson)
'making me snore' is the wordplay.
'making' indicates anagramming the letters.
'me'+'snore'='mesnore'
'mesnore' with letters rearranged gives 'EMERSON'.
(Other definitions for emerson that I've seen before include "American writer, 1803-82" , "--, Lake and Palmer, rock group" , "Ralph Waldo . . . . . . ., wrote The American Scholar" , "Ralph Waldo ......., 19th century American transcendentalist" , "he could write!" .)