Bulletin from channel framing health centre (8)
I believe the answer is:
dispatch
'bulletin' is the definition.
(thesaurus)
'channel framing health centre' is the wordplay.
'channel' becomes 'ditch' (a small channel or trench in the ground).
'framing' means one lot of letters goes inside another (inserted letters are framed by the outside letters).
'health centre' becomes 'spa' (synonyms).
'ditch' placed around 'spa' is 'DISPATCH'.
'from' acts as a link.
(Other definitions for dispatch that I've seen before include "Take out" , "report I preferred" , "Kill, send off" , "Send with speed" , "Send promptly; murder" .)