Ground facility to aid flier in difficulties (8)

I believe the answer is:

airfield

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'ground facility' is the definition.
'airfield' can be an answer for 'facility' (airfield is a kind of facility). I am not certain of the 'ground' bit.

'aid flier in difficulties' is the wordplay.
'in difficulties' is an anagram indicator (I've seen this in other clues).
'aid'+'flier'='aidflier'
'aidflier' anagrammed gives 'AIRFIELD'.

'to' acts as a link.

Can you help me to learn more?

(Other definitions for airfield that I've seen before include "Landing strip" , "If derail? (Anag)" , "Landing/take-off area" , "Where planes may land and take off" , "Landing ground" .)

I've seen this clue in The Globe and Mail.

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