Quiet about incident, far from the first (7)
I believe the answer is:
seventh
'far from the first' is the definition.
(several ranks down from first)
'quiet about incident' is the wordplay.
'quiet' becomes 'sh' (both can be said to tell someone to be quiet).
'about' means one lot of letters goes inside another.
'incident' becomes 'event' (an incident is an event or happening).
'sh' placed around 'event' is 'SEVENTH'.
(Other definitions for seventh that I've seen before include "Part of" , "Interval just less than octave" , "after six" , "This heaven is the most exalted state of happiness" , "Position of Judges in Old Testament" .)