Regarding - Crossword Clue, Answer and Explanation

'regarding' is the definition.
(I've seen this in another clue)

This is all the clue.

(Other definitions for about that I've seen before include "On the subject of, approximately" , "'All - - Eve' (film)" , "Engaged in" , "nearby" , "Concerning (something)" .)

I've seen this clue in The Telegraph, the King Feature Syndicate, The New York Times, the Penny Press, the LA Times, the Universal and The Star Tribune.

'regarding' is the definition.
(archaic term meaning about)

This is all the clue.

(Other definitions for anent that I've seen before include "Concerned with" , "Concerning (archaic)" , "About (Scottish)" .)

I've seen this clue in The Telegraph, the King Feature Syndicate, The New York Times, the Penny Press, the LA Times, the Universal and The Star Tribune.

(Other definitions for eying that I've seen before include "Looking at with interest" , "Fixated on" , "In the process of close scrutiny" , "Observing" , "Ogling," .)

I've seen this clue in The Telegraph, the King Feature Syndicate, The New York Times, the Penny Press, the LA Times, the Universal and The Star Tribune.

'regarding' is the definition.
(I've seen this in another clue)

This is the entire clue.

(Other definitions for asper that I've seen before include "Rough" , "By means of" .)

I've seen this clue in The Telegraph, the King Feature Syndicate, The New York Times, the Penny Press, the LA Times, the Universal and The Star Tribune.

'regarding' is the definition.
(as to that topic...)

This is all the clue.

(Another definition for as to that I've seen is " Concerning".)

I've seen this clue in the USA Today, the Newsday, the King Feature Syndicate, The Wall Street Journal, The New York Times, the Penny Press, the LA Times, the Universal and The Star Tribune.

'regarding' is the definition.
(as to that topic...)

This is the entire clue.

(Another definition for asto that I've seen is " about...".)

I've seen this clue in the USA Today, the Newsday, The Washington Post, the King Feature Syndicate, The Wall Street Journal, The New York Times, the LA Times and the Universal.

Regarding (5)