Insist a title's up for change (9)
I believe the answer is:
stipulate
'insist' is the definition.
The answer and definition can be both to do with communicating as well as being verbs in their base form.
Maybe you can see an association between them that I don't see?
'a title's up for change' is the wordplay.
'for change' indicates anagramming the letters (I've seen this in other clues).
'a'+'titles'+'up'='atitlesup'
'atitlesup' anagrammed gives 'STIPULATE'.
Can you help me to learn more?
(Other definitions for stipulate that I've seen before include "Make a demand" , "Demand, specify" , "Define, require" , "Demand as part of agreement" , "Specify as a condition or requirement" .)