Something highly sought after Crossword Clue

 The answer to the crossword clue "Something highly sought after" could be a noun, verb, adjective, or adverb. Here are some possible answers for each part of speech:

Noun:

Grail (a legendary cup or chalice sought after by knights in the Arthurian legend)

Treasure (a collection of precious objects)

Prize (a reward for winning a contest or competition)

Bounty (a reward offered for the capture or killing of a person or animal)

Heirloom (an object that has been passed down through generations of a family)

Verb:

Covet (to desire something strongly)

Aspire (to strive to achieve something)

Long for (to desire something strongly)

Dream of (to imagine something that one desires)

Yearned for (to have a strong desire for something)

Adjective:

Desireable (something that is wanted or wished for)

Coveted (something that is much desired)

Prized (something that is highly valued)

Aspirational (something that one aspires to achieve)

Dreamlike (something that is like a dream)

Adverb:

Eagerly (in a very eager way)

Avidly (in a very enthusiastic way)

Desperately (in a very urgent or hopeless way)

Longingly (in a way that shows a strong desire)

Yearnedly (in a way that shows a strong desire)

The answer to the crossword clue could be any of these words, depending on the context of the puzzle.