Prevent young attendant’s suspension (8)
I believe the answer is:
stoppage
'suspension' is the definition.
(thesaurus)
'prevent young attendant's' is the wordplay.
'prevent' becomes 'stop' (stopping is a kind of preventing).
'young attendant' becomes 'page' (eg a royal page).
'stop'+'page'='STOPPAGE'
(Other definitions for stoppage that I've seen before include "pay may be reduced by this" , "Discontinuation" , "Deduction (from wage); cessation" , "action by strikers" , "strike results" .)