Abstracted female GP possibly injected with drug (6)
I believe the answer is:
dreamy
'abstracted female' is the definition.
'dreamy' can be an answer for 'abstracted' (thesaurus). I am not sure about the 'female' bit.
'gp possibly injected with drug' is the wordplay.
'gp' becomes 'dr' (general practitioner).
'possibly' becomes 'amy' (I can't justify this - if you can you should believe this answer much more).
'injected with' indicates putting letters inside.
'drug' becomes 'e' (E is another name for ecstasy).
'dr'+'amy'='dramy'
'dramy' going around 'e' is 'DREAMY'.
(Other definitions for dreamy that I've seen before include "like a midsummer night?" , "Languorous" , "Unreal, very pleasant (colloq.)" , "Misty" , "Unreal -- gorgeous" .)