Unpleasant type poking face using fingers (7)
I believe the answer is:
digital
'using fingers' is the definition.
(I've seen this before)
'unpleasant type poking face' is the wordplay.
'unpleasant type' becomes 'git' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'poking' means one lot of letters goes inside another (poke can mean to create a hole in).
'face' becomes 'dial' (dial is a kind of face).
'git' put inside 'dial' is 'DIGITAL'.
Can you help me to learn more?
(Other definitions for digital that I've seen before include "of modern clock?" , "Using fingers" , "Of data expressed as a series of 0 and 1" , "As most computers" , "Displaying in numbers like some watches" .)