Can’t find any audio but I’m sure I’ve seen it on a Fabio / Grooverider radio tracklisting
'Cold War' (originally titled 'Cold World' on dubplates) was released by Talkin' Loud as the B Side to 'True Stories'. The released version clocks in at around 8 mins, there is a longer ten minute version that was on the Talkin' Loud promo only, I assume this is the version you mean. I think the reason for the edit is due to the stupid 20 minute rule that existed for singles at the time- a single could not exceed that length if the label wanted it to be eligible for the singles charts. Talkin' Loud obviously thought this was a potential crossover chart hit for Krust and so edited 'Cold War' down to get it below 20 mins with the combined 11 minute long 'True Stories'.
Interestingly Krust has never had a top 40 hit under his own name but a number of releases, some 12" only, have broken the top 75 and are therefore deemed to have been 'hits'. 'Cold War' which was released on CD single as well as vinyl, peaked at number 77.