A big fan of

The answer to the crossword question “A big fan of is INTO” is the word enthusiast. Enthusiast refers to someone who is extremely interested or passionate about a particular thing, activity or subject. When someone is described as an enthusiast, it usually means that they have a deep knowledge and understanding of the thing they are interested in, and they spend a lot of time enjoying and learning about it. In the context of the crossword question, the word ‘into’ is used as a synonym for being passionate or interested in, and ‘a big fan of’ suggests someone who has a strong liking for something, which is why the answer is enthusiast.