Pulled (in) (6)
'pulled in' is the definition.
('earn' can be a synonym of 'pull in')
This is all the clue.
(Other definitions for earned that I've seen before include "Got from paid employment merited" , "well deserved" , "Merited through work" , "Merited through behavior" , "Merited through behaviour" .)
(Other definitions for reined that I've seen before include "Stopped or slowed a horse" , "Restrained" , "Pulled in, checked progress" .)