Coach gets no new additional money (5)
I believe the answer is:
bonus
'additional money' is the definition.
'bonus' can be an answer for 'money' (I have seen 'extra money' mean 'bonus' so perhaps 'money' could also mean 'bonus'). I'm not sure about the 'additional' bit.
'coach gets no new' is the wordplay.
'coach' becomes 'bus' (synonyms).
'gets' is an insertion indicator (gets can mean captures or absorbs).
'new' indicates anagramming the letters.
'no' is an anagram of 'on'.
'bus' going around 'on' is 'BONUS'.
Can you help me to learn more?
(Other definitions for bonus that I've seen before include "Premium" , "Good performance reward" , "Extra payment - reward" , "Extra payment, may be performance-related" , "Sum added to salary for good performance" .)