Wear away - Crossword Clue, Answer and Explanation

I've seen this clue in The Times, The Telegraph, The Mirror, The Independent, The Wall Street Journal, The New York Times, the USA Today, the Sydney Morning Herald, the LA Times, The Guardian, the Universal, the Penny Press, The Star Tribune, the Evening Standard, the King Feature Syndicate and the Newsday.

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

This is all the clue.

(Other definitions for fret that I've seen before include "Sort of saw work" , "Fog" , "Worry unnecessarily" , "Worry; or the marking on a guitar" , "Notes separator" .)

I've seen this clue in The Telegraph, The Daily Mail and The Guardian.

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

This is all the clue.

(Other definitions for fray that I've seen before include "Wear at the edge" , "Chafe" , "Wear away from rubbing" , "Battle - loose at the edges!" , "Become stressed" .)

I've seen this clue in The Telegraph, The Daily Mail and The Guardian.

'wear away' is the definition.
(synonyms)

This is all the clue.

(Other definitions for gnaw that I've seen before include "Chew upon" , "Chew or crunch at" , "Wear away with the teeth" , "Chew at, work with teeth" , "Chew and grind down" .)

I've seen this clue in The Telegraph, The Daily Mail and The Guardian.

'wear away' is the definition.
(abrading is a kind of wearing away)

This is the entire clue.

(Other definitions for abrade that I've seen before include "Wear away by friction" , "Scratch" , "Scrape away, erode" , "Wear away by rubbing (6)" , "Wear away by rubbing, scrape" .)

I've seen this clue in The Times, the King Feature Syndicate and The Star Tribune.

Wear away (5)