Desert animal has trouble going round bush (8)
I believe the answer is:
camellia
'bush' is the definition.
(I know that camellia is a type of bush)
'desert animal has trouble going round' is the wordplay.
'desert animal' becomes 'camel' (I've seen this in another clue).
'has' is a charade indicator (letters next to each other).
'trouble' becomes 'ail' (synonyms).
'going round' says the letters should be written backwards.
'ail' written backwards gives 'lia'.
'camel'+'lia'='CAMELLIA'
(Other definitions for camellia that I've seen before include "Shrub related to tea plant" , "Showy evergreen shrub" , "Email Cal about the flowering shrub" , "Shiny-leaved shrub" , "Make the flower from strange lace mail" .)