Part of airport where fugitive loses heart? (6)
I believe the answer is:
runway
'part of airport' is the definition.
'fugitive loses heart?' is the wordplay.
'fugitive' becomes 'runaway' ('runaway' can be a synonym of 'fugitive').
'loses heart?' means to remove the middle letters (I've seen 'losing heart' mean this).
'runaway' with its centre taken out is 'RUNWAY'.
'where' acts as a link.
(Other definitions for runway that I've seen before include "Take-off and landing strip" , "takeoff point" , "Airstrip" , "Strip for take off and landing of aircraft" , "Track for takeoff and landing" .)