Pilot here endlessly flying? (8)
I believe the answer is:
heliport
'pilot here endlessly flying?' is the definition.
Although both the answer and definition are singular nouns, I don't understand how they can define each other.
'pilot here endlessly flying?' is the wordplay.
'endlessly' means to remove the last letter.
'flying?' indicates an anagram.
'pilot'+'here'='pilothere'
'pilothere' with its final letter taken away is 'pilother'.
'pilother' is an anagram of 'HELIPORT'.
(Other definitions for heliport that I've seen before include "Home for choppers?" , "Landing place for small aircraft" , "where choppers may rest" , "landing platform" , "Landing-place" .)