Detective emerging from helicopter with our suspect (7,6)
I believe the answer is:
hercule poirot
'detective' is the definition.
'helicopter with our suspect' is the wordplay.
'with' says to put letters next to each other.
'suspect' indicates anagramming the letters (a suspicious or unusual spelling).
'helicopter' put after 'our' is 'ourhelicopter'.
'ourhelicopter' anagrammed gives 'HERCULE POIROT'.
'emerging from' is the link.
(Other definitions for hercule poirot that I've seen before include "Christie's Belgian sleuth" , "Fabled detective" , "Fictional Belgian detective" , "Agatha Christie's detective" .)