Covert manoeuvres to find carrier of disease (6)
I believe the answer is:
vector
'carrier of disease' is the definition.
'vector' can be an answer for 'carrier' (thesaurus). I am not certain of the 'of disease' bit.
'covert manoeuvres' is the wordplay.
'manoeuvres' is an anagram indicator.
'covert' with letters rearranged gives 'VECTOR'.
'to find' acts as a link.
Can you help me to learn more?
(Other definitions for vector that I've seen before include "one expressing direction" , "Direction to be followed by an aeroplane" , "Carrier of infection and course of a missile" , "Covert sort of maths quantity" , "Disease carrier; mathematical quantity" .)