Sort dropping English - at home with good keyboard skill (6)
I believe the answer is:
typing
'keyboard skill' is the definition.
(typing with a keyboard)
'sort dropping english at home with good' is the wordplay.
'sort' becomes 'type' (type is a kind of sort).
'dropping' indicates named letters should be taken away.
'english' becomes 'e' (abbreviation).
'at home' becomes 'in' ('I'm in' can mean 'I'm at home').
'with good' becomes 'g' (abbreviation. I am not sure about the 'with' bit.).
'type' with 'e' removed is 'typ'.
'typ'+'in'+'g'='TYPING'
(Other definitions for typing that I've seen before include "Using one form of keyboard" , "Keyboarding" .)