** Newspaper publisher's shares up 8 pct after saying it would buy rival Local World for 220 mln stg
** Trinity Mirror, which already owns a 20 pct stake inLocal World, revealed in Sept that it was in talks to buy thefirm
** TNI is attempting to build scale to help counteract theimpact of falling revenue as more readers and advertisers moveonline
** "We see this as an excellent deal for Trinity World,paying just over 5x EV/EBITDA ex-synergies," Liberum analystswrite in a note. Broker reiterates "buy" and TP 275p
** Stock top FTSE small-cap gainer, with more than7-times its full-day's avg volume having gone through (RM: aastha.agnihotri.thomsonreuters.com@reuters.net)