Telephone service abused in chalet (8)
I believe the answer is:
chatline
'telephone service' is the definition.
(type of phone service)
'abused in chalet' is the wordplay.
'abused' indicates an anagram.
'in'+'chalet'='inchalet'
'inchalet' with letters rearranged gives 'CHATLINE'.
(Other definitions for chatline that I've seen before include "Facilitator of talks with receivers" , "facility where several call for it" , "Phone service for several to talk informally" .)