Intelligence can still be displayed during brain fog (4)

I believe the answer is:

info

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'intelligence' is the definition.
(I've seen this before)

'displayed during brain fog' is the wordplay.
'displayed' indicates a hidden word (the answer is displayed within the clue).
'INFO' can be found hidden inside 'during brain fog'.

'can still be' is the link.
This may not be correct. Some or all of it may belong to another bit of the clue.

Can you help me to learn more?

(Other definitions for info that I've seen before include "Gen (colloq.)" , "Knowledge (colloq.)" , "counsel?" , "Latest" , "Intelligence (abbr)" .)

I've seen this clue in The Irish Times.

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