Compile a covert puzzle and make it too difficult (14)

I believe the answer is:

overcomplicate

I'm a little stuck... Click here to teach me more about this clue!

'make it too difficult' is the definition.
I know nothing about this answer so I can't judge whether it can be defined by this definition.

'compile a covert puzzle' is the wordplay.
'puzzle' indicates an anagram.
'compile'+'a'+'covert'='compileacovert'
'compileacovert' anagrammed gives 'OVERCOMPLICATE'.

'and' is the link.

Can you help me to learn more?

I've seen this clue in the Sydney Morning Herald.

Want a hint initially instead of a full solution? Install my app