Blue-green (4)
'blue-green' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for aqua that I've seen before include "Water (L)" , "- Regia; - fortis" , "Latin for water" , "Prefix denoting "water"" , "Hue" .)
'blue-green' is the definition.
(I know that blue-green can be written as teal)
This is the entire clue.
(Other definitions for teal that I've seen before include "Variety of small ducks" , "Type of duck" , "Duck; greenish-blue colour" , "Dark green-blue; duck" , "Small freshwater duck and colour" .)