Foolishly altering any line that's not straight (7)

I believe the answer is:

inanely

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

'foolishly' is the definition.
(synonyms)

'any line that's not straight' is the wordplay.
'that's not straight' is an anagram indicator.
'any'+'line'='anyline'
'anyline' anagrammed gives 'INANELY'.

'altering' is the link.
I am not very happy about this link. It may belong to another bit of the clue.

Can you help me to learn more?

(Other definitions for inanely that I've seen before include "in a daft way" , "Stupidly" , "In a fatuous manner" , "Senselessly" , "Vapidly" .)

I've seen this clue in The Globe and Mail and The Irish Independent.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.