Manage to get a French one at the air terminal (3)
I believe the answer is:
run
'manage' is the definition.
(both can mean to organise)
'a french one at the air terminal' is the wordplay.
'a french one' becomes 'un' ('one' in French).
'at' says to put letters next to each other (I've seen this in other clues).
'terminal' says to take the final letters (terminal refers to the end).
The final letter of 'air' is 'r'.
'un' put after 'r' is 'RUN'.
'to get' is the link.
(Other definitions for run that I've seen before include "A single" , "Manage (eg, a company)" , "Flow; function" , "Possibly an extra" , "Chicken enclosure" .)