Responsibility for a social media manager (6)
I believe the answer is:
tweets
'responsibility for a social media manager' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for tweets that I've seen before include "Short internet messages" , "online comments" , "Sends social media comments, information, etc" , "Social media messages" , "Chirps social media postings" .)