Getting the index of an element in an array?

Specifically, I'm trying to make a system for character stats, where a particular character's stats are stored in a datamap as strings, but can be incremented from an array. So for instance:

(set $player to (datamap:
  "dex", "clumsy",
  "str", "weak")
)

(set $dexArray to (a:
  "clumsy",
  "average",
  "nimble")
)

What I'd like to do is to be able to use $player's dex to get the string "clumsy", and then find that string's index in $dexArray so I can increment it by using

(set: $player's dex to $dexArray's (//index of clumsy// + 1)

I know I can get a similar result by using numbers in the datamap (e.g. "dex", 1,) and that does make it easier to increment, but it means that each time I want to print the description of that stat, I have to use

(print: $dexArray's ($player's dex))

instead of a simpler

(print: $player's dex)

I'm currently getting around this by using a passage I named updateVariables that I can (display:) whenever the variables change, which sets the whole

$dexArray's ($player's dex))

to a single variable $dexDesc, but it requires more prep than being able to grab the string directly from the datamap, and it means I have to call that passage any time a variable changes.