Dexterous, but for a doctor there's nothing to it (6)
I believe the answer is:
adroit
'dexterous' is the definition.
(similar in meaning)
'a doctor there's nothing to it' is the wordplay.
'doctor' becomes 'Dr' (abbreviation).
'there's nothing' becomes 'o' (I've seen this in other clues).
'to' means one lot of letters go next to another.
'a'+'dr'+'o'+'it'='ADROIT'
'but for' is the link.
This may not be correct. Some or all of it may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for adroit that I've seen before include "handy" , "Dextrous" , "Quick or adept" , "Clever - crafty" , "resourceful" .)