### Clue: Rearing water parsnips takes in half of water for Chilean shrubs (6)
### Answer: MAQUIS 
 ### Explanation: Definition: Chilean shrubs
AQ[ua] in reverse of SIUM (water parsnip). Maqui is from an indigenous South American language, and seems to be unrelated to Maquis, meaning shrubland, as used to describe French Resistance guerillas