Much as you want, its no good to fool stupidly around to the bitter end (4,3)

'much as you want its no good' is the definition.
I know nothing about this answer so I can't tell whether it can be defined by this definition.

'fool stupidly around to the bitter end' is the wordplay.
'stupidly' indicates an anagram (a stupid ordering of the letters).
'around' is an insertion indicator.
'to' becomes 'ng' (I can't explain this - if you can you should believe this answer much more).
'end' suggests the final letters.
The last letter of 'bitter' is 'r'.
'fool' anagrammed gives 'lofo'.
'lofo' enclosing 'ng' is 'longfo'.
'longfo'+'r'='LONG FOR'

'to' acts as a link.

Can you help me to learn more?