If you don't mind I will answer this as to my opinion, Conan can answer too if he wishes.
I think anyone who sincerely, and with faith prays and asks God for help and answers can receive answers for themselves.
As to receiving answers for other people, I believe you would have to have true authority from God to be in a position to be a go between with God and other people. Parents are naturally able to receive revelation from God in behalf of their family. Most people here know by now I believe the LDS Church to have authority to act in the name of God in behalf of other people for certain things that we call the Priesthood.
As to the question of other clergy. I believe that is what separates the LDS Church from other churches. The true authority from God to act in his name, and as a go between receive revelation in certain instances for other people you have a duty to help as "clergy". So, no... other religious clergy does not receive direct revelation from God for those people to the same extent. I do believe to a smaller extent they do receive answers and revelation and can do many good things for those people, and others but in general and not as specific.
Does that make sense, or am I rambling?