Monitor lively chat by women and follow (8)
I believe the answer is:
watchdog
'monitor' is the definition.
(thesaurus)
'lively chat by women and follow' is the wordplay.
'lively' indicates anagramming the letters (I've seen this in other clues).
'by' is a charade indicator (letters next to each other).
'women' becomes 'w'.
'and' means one lot of letters go next to another.
'follow' becomes 'dog' (I've seen this before).
'chat' with letters rearranged gives 'atch'.
'atch' put after 'w' is 'watch'.
'watch'+'dog'='WATCHDOG'
(Other definitions for watchdog that I've seen before include "Guardian (pet, official)" , "Heroic poem" , "Animal guarding property - guardian against inefficiency or illegality" , "TV show" , "Guardian of people's rights, of canine origin" .)