The most common and most likely answer to this crossword clue is the 6 letter word PURINE
P
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Buddy explains!
The straight part
We know that "Component of uric acid " is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case component of uric acid = purine.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does PURINE mean?
PURINE noun- Any of a class of organic heterocyclic compounds, composed of fused pyrimidine and imidazole rings, that constitute one of the two groups of organic nitrogenous bases (the other being the pyrimidines) and are components of nucleic acids.