Pressure a little bit (8)
I believe the answer is:
particle
'a little bit' is the definition.
(I've seen this in another clue)
'pressure' is the wordplay.
I cannot really see how this works, but
'pressure' could be 'p' (abbreviation) and 'p' is located in the answer.
The remaining letters 'article' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for particle that I've seen before include "Minute piece of matter" , "Tiny piece of matter" , "Speck of matter" , "Tiny piece of anything" , "Prelatic (anag.)" .)