Disdain shown by new office worker in bed (8)
I believe the answer is:
contempt
'disdain' is the definition.
('contempt' can be a synonym of 'disdain')
'new office worker in bed' is the wordplay.
'new' becomes 'n'.
'office worker' becomes 'temp' (I've seen this before).
'in' is an insertion indicator.
'bed' becomes 'cot' (cot is a kind of bed).
'n'+'temp'='ntemp'
'ntemp' going within 'cot' is 'CONTEMPT'.
'shown by' is the link.
(Other definitions for contempt that I've seen before include "Disobedience to the rules of a court of law" , "Scornful feeling" , "Beneath this is despicable" , "Disdain or disrespect, perhaps or court" , "Offence of disrespect in court" .)