Elder unit forced to pause (9)
I believe the answer is:
interlude
'to pause' is the definition.
(I've seen this before)
'elder unit forced' is the wordplay.
'forced' is an anagram indicator.
'elder'+'unit'='elderunit'
'elderunit' is an anagram of 'INTERLUDE'.
(Other definitions for interlude that I've seen before include "Temporary amusement or diversion" , "Break in performance" , "Entr'acte" , "Short performance during an interval" , "Eli turned (anag.)" .)