Doctor should see dry condition (7)
I believe the answer is:
drought
'dry condition' is the definition.
(I've seen this before)
'doctor should' is the wordplay.
'doctor' becomes 'Dr' (abbreviation).
'should' becomes 'ought' (synonyms).
'dr'+'ought'='DROUGHT'
'see' acts as a link.
(Other definitions for drought that I've seen before include "Prolonged shortage of rain" , "Prolonged shortage of rainfall" , "Long dry spell" , "Period of low rainfall" , "Severe water shortage" .)