Ruler starts to expect miracles immediately, right? (4)
I believe the answer is:
emir
'ruler' is the definition.
(emir is a kind of ruler)
'starts to expect miracles immediately right?' is the wordplay.
'starts to' says to take the initial letters.
The first letters of 'expect miracles immediately right' is 'EMIR'.
(Other definitions for emir that I've seen before include "Eastern title" , "eader abroad?" , "Islamic chieftain" , "Leading role" , "Title of various Muslim rulers" .)