Complaint from an officer, I see (5)
I believe the answer is:
colic
'complaint' is the definition.
(medical complaint)
'an officer i see' is the wordplay.
'an officer' becomes 'col' (I've seen this before**).
'see' becomes 'c' (the word for the letter, according to Chambers).
'col'+'i'+'c'='COLIC'
'from' acts as a link.
(Other definitions for colic that I've seen before include "Early pain" , "Abdominal pain from wind or obstruction" , "A severe tummy ache" , "one for babies" , "Severe stomach pain" .)