Speak further about gripping tool, it's recommended (7)
I believe the answer is:
advised
'it's recommended' is the definition.
(I've seen this before)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for advised that I've seen before include "Informed" , "Sensible; recommended (a course of action)" , "Gave guidance to" , "Notified" , "Given recommendation" .)