Does it indicate the drought is over? (6)
I believe the answer is:
shower
'does it indicate the drought is over?' is the definition.
I can't tell whether this definition defines the answer.
'indicate the drought is over?' is the wordplay.
'indicate' becomes 'show' (showing is a kind of indicating).
'the drought' becomes 're' (I am not sure about this - if you are sure you should believe this answer much more).
'is over?' says the letters should be written backwards.
're' in reverse letter order is 'er'.
'show'+'er'='SHOWER'
Can you help me to learn more?
(Other definitions for shower that I've seen before include "that's revealing?" , "Plumbing fixture to spray water" , "Brief spell of precipitation" , "awful group of people" , "Rabble - downfall" .)