transitive verb
Definition 1
Grapple with, grasp with, endeavour to hold or manage or overcome (opponent, awkward thing or business problem).
Source: Concise Oxford Dictionary
Context: Chen Zhu, China's minister of health, told the forum, "Developed countries should help the developing world build up its manpower to tackle the problem [of lack of knowledge of health statistics worldwide]".
Source: scidev.net 30/10/2007 (Jia Hepeng)