Crossword Genius

Fly by night, finally getting directions over Spain (6)

Ross

I believe the answer is:

tsetse

'fly' is the definition.
(tsetse is a kind of fly)

'night finally getting directions over spain' is the wordplay.
'finally' says to take the final letters.
'getting directions over' becomes 'sets' (I can't justify this - if you can you should give a lot more credence to this answer).
'spain' becomes 'e' (abbreviation for Espana).
The last letter of 'night' is 't'.
't'+'sets'+'e'='TSETSE'

'by' is the link.

(Other definitions for tsetse that I've seen before include "Disease-carrying fly" , "cause of sleepiness?" , "flies" , "carrier of disease" , "fly across Africa" .)

I've seen this clue in The Independent.
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