What is referred to by 'a leslie nielsen comedy'?

What is referred to by 'a lepidopterist'? Based on the clue 'a leptocephalus or larval moray eats drifts for m...', what is the answer? Based on the clue 'a lerner loewe musical about a lovely insect who ...', what is the answer? Based on the clue 'a lerner lowe song lyric goes thank heaven for th...', what is the answer? Based on the clue 'a less than investment grade bond is usually refer...', what is the answer? What is associated with: a less than pleasant russian 1547 84? What is referred to by 'a less vibrant hue'? Based on the clue 'a lesser official in a royal household some are of...', what is the answer?