Awe Romeo out of play receives (5)
I believe the answer is:
dread
'awe' is the definition.
(I've seen this before)
'romeo out of play receives' is the wordplay.
'romeo' becomes 'r' (phonetic alphabet: alpha, bravo, charlie etc.).
'out of play' becomes 'dead' (similar in meaning).
'receives' means one lot of letters goes inside another (inserted letters are received).
'r' going into 'dead' is 'DREAD'.
(Other definitions for dread that I've seen before include "Adder (anag)" , "Be afraid of - anxiety" , "Fear - dire" , "great anxiety" , "Anticipate with fear" .)