Overlook the lack of respect (9)

I believe the answer is:

disregard

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

'lack of respect' is the wordplay.
'lack of' becomes 'dis' (I can't justify this - if you can you should believe this answer much more).
'respect' becomes 'regard' (synonyms).
'dis'+'regard'='DISREGARD'

'the' is the link.

Can you help me to learn more?

(Other definitions for disregard that I've seen before include "Neglect, ignore" , "Push aside" , "Overlook - inattention" .)

I've seen this clue in the Evening Standard.

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