Just in case - if it's a more or less static blog then Helix (as well as the underlying React) is likely an overkill and something like a static website generator would be a better fit. As for your actual question - nowadays it isn't that much of a problem to just include the symbol in your sources directly: "Learn more →".

Oh it's definitely overkill, but it makes me happy ^^ As for the arrow. Putting it in directly worked beautifully thanks a bunch.

The key thing is that evidently your tool "escapes" the string content, thereby making an equivalent presentation once the browser interprets the HTML. This is considered a Very Good Thing because it inhibits injection attacks. As a result, your responsibility (as the programmer) is to provide an accurate Clojure string, NOT HTML. Therefore pasting the arrow, literally, works. You also have another option: If you want a 7-bit-clean source code, you can use the usual \uXXXX kind of notation (for Clojure strings) to insert the arrow.

I am surprised nobody has told you about goog.string/unescapeEntities yet

It should be sufficient to (require '[goog.string :as gstr]) then make the link's child (gstr/unescapeEntities "Learn more →")

That function is nasty, I'd avoid it when at all possible.