Suggest you give somebody a ring (7)
I believe the answer is:
propose
'suggest' is the definition.
(as in proposing a plan)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for propose that I've seen before include "Put forward (an idea)" , "Request" , "Offer for consideration" , "Pop the question" , "Tender" .)