Discouraged gent turned up first (3,3)
I believe the answer is:
put off
'discouraged' is the definition.
(I've seen this before)
'gent turned up first' is the wordplay.
'gent' becomes 'toff' (term for an upper-class person).
'turned' says the letters should be written backwards.
'first' means one lot of letters go next to another.
'up' in reverse letter order is 'pu'.
'toff' put after 'pu' is 'PUT-OFF'.
(Other definitions for put off that I've seen before include "'Never ... ... till tomorrow what you can do today'" , "confuse" , "Don't ... ... till tomorrow what can be done today" , "Postpone; distract" , "Postpone - disconcert" .)