Short breaks in adult employment covered by note (6)
I believe the answer is:
pauses
'short breaks' is the definition.
(I've seen this before)
'adult employment covered by note' is the wordplay.
'adult' becomes 'a'.
'employment' becomes 'use' ('use' can be a synonym of 'employment').
'covered by' indicates putting letters inside.
'note' becomes 'ps' (PS is an example**).
'a'+'use'='ause'
'ause' inserted inside 'ps' is 'PAUSES'.
'in' acts as a link.
(Other definitions for pauses that I've seen before include "Temporary halts" , "Short stops" , "Temporary suspensions" , "Short silences" , "Stops or rests briefly" .)