This agency launches new accounting software application for beginners (4)
I believe the answer is:
nasa
'this agency' is the definition.
(I know that NASA is a independent agency of the United States government)
'launches new accounting software application for beginners' is the wordplay.
I cannot quite see how this works, but
'new' could be 'n' (common abbreviation eg NT for New Testament) and 'n' is found within the answer.
The remaining letters 'asa' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for nasa that I've seen before include "US headquarters for space exploration" , "US agency responsible for space flight" , "rocket launcher" .)