Out all the time without finishing, left out (4)
I believe the answer is:
away
'out' is the definition.
(synonyms)
'out all the time without finishing left' is the wordplay.
'out all' becomes 'yaw' (I am not sure about this - if you are sure you should believe this answer much more).
'the time' becomes 'am'.
'without finishing' means to remove the last letter.
'left' says the letters should be written in reverse.
'am' with its final letter removed is 'a'.
'yaw'+'a'='yawa'
'yawa' in reverse letter order is 'AWAY'.
Can you help me to learn more?
(Other definitions for away that I've seen before include "Away in the distance" , "Not at home, somewhere else" , "On vacation" , "Not present, having left" , "football result!" .)