REPRIEVE BY NATO ALLOWS MILOSEVIC ANOTHER 10 DAYS
NATO grants Yugoslav Pres Slobodan Milosevic a reprieve, extending by 10 days its deadline for him to withdraw military and police forces cracking down on ethnic Albanians in province of Kosovo; in face of abundant evidence that Milosevic has not yet kept his pledges to withdraw forces, NATO's reprs in Brussels give him until Oct 27 to comply or face threat of NATO military attacks; they say reprieve brings time for international observers to arrive on ground in Kosovo; they also say it will allow NATO to start surveillance flights; photo (M)

