Chuck Yeager maybe rewriting top titles (4,5)
I believe the answer is:
test pilot
'chuck yeager maybe' is the definition.
(US pilot Chuck Yeager)
'rewriting top titles' is the wordplay.
'rewriting' is an anagram indicator.
'top'+'titles'='toptitles'
'toptitles' anagrammed gives 'TEST PILOT'.
(Other definitions for test pilot that I've seen before include "One might check bombers" , "Alan Shepard once?" , "high flier" , "Experimental flyer" , "Airman" .)