Frank; order (6)
I believe the answer is:
direct
I believe this is a double definition.
'frank' is the first definition.
(similar in meaning)
'order' is the second definition.
(I know that direct is a more specific form of the action order)
(Other definitions for direct that I've seen before include "Outspoken" , "Frank; supervise" , "Point the way" , "Following the quickest and shortest path" , "Straight and to the point" .)