Thanks again Jolan, for great clues.
My stabs are below. One is more of a thrust in the dark.
1. Couch becomes ragged on delivery (6)
Phrase?
“Phrase” sounds like (on delivery) “frays”- becomes ragged. To couch something is to phrase it?
2 Asian oil producers pull low g in battered cars (12)
Chaulmoogars?
Chaulmoogars are Asian oil producers (chaulmoogra oil is used in Indian and Chinese medicine). Pull – haul + low – moo + g, all in anagram of cars –“C haul moo g ars”?
3. A crippled foe may be the culmination of an eagle’s flight (5,2,5) A long shot
Pride of place?
Anagram of “A crippled foe” is pride of place, presumably where an eagle’s flight ends?
4. Mine planted by a unit (4,3)
One’s own?
Planted – sown with unit – one to give One’s own- mine?
5. Rupert Murdoch’s not abreast of changes? (6,3,5)
Behind the times? Rupert Murdoch owns The Times, so is “behind the times” – not abreast of changes?