With regard to (7)
'with regard to' is the definition.
('as for' means 'as regards' or 'with regard to')
This is the entire clue.
(Other definitions for as for that I've seen before include "With regard to" , "With reference to" .)
'with regard to' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for apropos that I've seen before include "To the point about poor spa" , "Incidentally - pertinent" , "To the point, relevant" , "On the subject of" , "Regarding" .)
'with regard to' is the definition.
(thesaurus)
This is all the clue.
(Another definition for respecting that I've seen is " showing esteem".)