Exhaustion from travelling in spring with convict (3,3)
I believe the answer is:
jet lag
'exhaustion from travelling' is the definition.
I know that 'travelling' relates to this answer.
'in spring with convict' is the wordplay.
'in spring' becomes 'jet' (I can't justify this - if you can you should give a lot more credence to this answer).
'with' says to put letters next to each other.
'convict' becomes 'lag' (slang term for a prisoner).
'jet'+'lag'='JET-LAG'
Can you help me to learn more?
(Other definitions for jet lag that I've seen before include "Sometimes a result of international travel" , "problem after long-distance transfer" , "Tiredness felt after long plane flight" , "It sometimes results from international travel" , "Air traveller's malaise" .)