Try again to tear away office worker on time (9)

'try again' is the definition.
('attempt' can be a synonym for 'try' so perhaps 'reattempt' is OK for 'try again')

'tear away office worker on time' is the wordplay.
'away' indicates anagramming the letters (letters move away from their original places).
'office worker' becomes 'temp' (short-term or temporary worker).
'on' is a charade indicator (letters next to each other).
'time' becomes 't' (abbreviation).
'tear' is an anagram of 'reat'.
'reat'+'temp'+'t'='REATTEMPT'

'to' acts as a link.