Tries, endeavours (8)
I believe the answer is:
attempts
I believe this is a double definition.
'tries' is the first definition.
('attempt' can be a synonym of 'try')
'endeavours' is the second definition.
('attempt' can be a synonym of 'endeavour')
(Other definitions for attempts that I've seen before include "Makes efforts" , "Efforts, endeavours" , "Makes a stab at" , "Tries, makes an effort" , "Endeaavours, tries" .)