Based on the clue 'a hymn of praise or loyalty perhaps a national one', what is the answer?

Based on the clue 'a husband wife emmy winning pair he for guesting ...', what is the answer? Based on the clue 'a hut from this admirals antarctic expedition is o...', what is the answer? Based on the clue 'a hydrate contains this compound weakly bound in i...', what is the answer? What is associated with: a hydroelectric power plant at this us landmark opened in 1881? Based on the clue 'a is for a capella from the italian for in this pl...', what is the answer? What is associated with: a is for this las vegas hotel where elvis priscilla were married on may 1 1967 not by a genie… Based on the clue 'a is for this romeo juliet tradesman a druggist f...', what is the answer? Based on the clue 'a is words picture a poem without', what is the answer?