Under strain, I move slowly on landing (4)
I believe the answer is:
taxi
'move slowly on landing' is the definition.
'taxi' can be an answer for 'move' (taxiing is a kind of moving). I am unsure of the 'slowly on landing' bit.
'under strain i' is the wordplay.
'under' says to put letters next to each other.
'strain' becomes 'tax' (taxing is a kind of straining).
'tax' put next to 'i' is 'TAXI'.
Can you help me to learn more?
(Other definitions for taxi that I've seen before include "Prepare to fly" , "move slowly along the ground" , "Cab for hire" , "At airport, guide" , "Hackney carriage" .)