Acid (4)
'acid' is the definition.
(tart can mean sharp or acid in taste)
This is the entire clue.
(Other definitions for tart that I've seen before include "Of taste, sharp or acid" , "Sharp or sour in taste" , "Sharp in manner, biting" , "Sharp, acidic" , "Astringent" .)
'acid' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for sour that I've seen before include "Acid-tasting" , "Acid - rancid" , "Tasting like 1 Dn" , "Sharp- or tart-tasting" , "Acid or caustic" .)
'acid' is the definition.
(I know that acid can be written as bitter)
This is the entire clue.
(Other definitions for bitter that I've seen before include "Resentful about English beer?" , "Sarcastic (words); very cold" , "Resentful, being piercingly cold" , "Tart or resentful" , "English ale, sounds sour" .)
'acid' is the definition.
(nitric acid is a kind of acid)
This is the entire clue.
(Other definitions for nitric that I've seen before include "Common type of acid" , "Citrin (anag.)" , "kind of acid" , "Very corrosive acid type" , "Of or containing nitrogen" .)
'acid' is the definition.
(amino acid is a kind of acid)
This is the entire clue.
(Other definitions for amino that I've seen before include "- - acids" , "sort of acid?" , "Minor insult; slim" , "Acid found in proteins" , "(Protein constituent) acid" .)
'acid' is the definition.
(boric acid is a kind of acid)
This is all the clue.
(Other definitions for boric that I've seen before include "Kind of acid used as mild antiseptic" , "Pertaining to boron" .)
'acid' is the definition.
(synonyms)
This is all the clue.
(Other definitions for lsd that I've seen before include "Pounds, shillings and pence of old" , "Old money and hallucinogenic drug" .)