Shrieks for small ointments (7)
I believe the answer is:
screams
'shrieks' is the definition.
('scream' can be a synonym of 'shriek')
'small ointments' is the wordplay.
'small' becomes 's' (abbreviation - e.g. clothes size).
'ointments' becomes 'creams' ('cream' can be a synonym of 'ointment').
's'+'creams'='SCREAMS'
'for' is the link.
(Other definitions for screams that I've seen before include "Shrill cries" , "Shouts" , "Yells" .)