Hill swapped Queens Park Rangers for Glasgow Rangers last year but won't be coming back despite leaving Ibrox in June.
The 38-year-old was released by Rangers manager Pedro Caixinha in May and had been training with League Two sides Chesterfield and Carlisle United.
Things had appeared to be going well for the Liverpudlian, who helped the Hoops' Under-23s to a 5-0 win against a Bolton Wanderers side containing the 47-cap former Brazil international Julio Baptista on Tuesday.
But despite suffering from a shortage of defenders, QPR say they were unable to agree a deal for the player who many Glasgow Rangers fans were disappointed to lose, after a season in which he finished the club's fourth top scorer with six goals from 30 appearances.
Here's what the Hoops fans have had to say:
To let Clint leave the club once could be forgiven but to let him leave twice could be seen as foolish!— neil flynn (@neilflynn61) September 15, 2017
Needs to be at club in some capacity
*Goodbye My Lover by James Blunt begins to play in the background* pic.twitter.com/3DwCNRioc0— Greg Spires (@greg_spires) September 15, 2017
That's a shame, I'd drop the chief and make Clint skipper, I'm sure most fans would agree...!— Lloydy (@TheGarwBoy) 15 September 2017
Well done! Guess we will just rely on furlong to cover for the injuries we have in defence! Great logic.... stupidity at its best!— Nathan (@Tatted_Mechanic) September 15, 2017
Shame, thought he would have been a big influence on the dressing room, didn't expect him to be a regular but more a coach or backup— Michael (@M_Seery_97) September 15, 2017
That's a poor decision from the Club that— Joe (@FreemansOnFire) September 15, 2017
Fuming at this— Harry (@SMlTHlES) September 15, 2017
Whaaaaaaaaatt....FFS....better than some we have pic.twitter.com/bhFCBzDIJE— Lager Lout (@lagerlout1966) September 15, 2017
Should QPR have pushed the boat out for the former Glasgow Rangers defender?