Got it right about work coming up (5)
I believe the answer is:
roger
'got it' is the definition.
(roger that)
'right about work coming up' is the wordplay.
'right' becomes 'r' (abbreviation).
'about' becomes 're' (regarding).
'work' becomes 'go' (synonyms).
'coming up' shows that the letters should be reversed in order (in a down clue, letters go up).
're'+'go'='rego'
'rego' backwards is 'oger'.
'r'+'oger'='ROGER'
(Other definitions for roger that I've seen before include "that's clear" , "Romeo's predecessor" , "Chap" , "Boy's name - I will do what you say" , "Boy's name - message understood" .)