Draw attention to mental pressure (6)
I believe the answer is:
stress
I believe this clue is a double definition.
'draw attention to' is the first definition.
(I've seen this before)
'mental pressure' is the second definition.
(Other definitions for stress that I've seen before include "Particular emphasis" , "suffering" , "Emphasis: result often of being under pressure" , "Emphasise the strain" , "Feeling of pressure" .)