Difficulty in getting up in an ancient language (3,5,2,5)
I believe the answer is:
per ardua ad astra
'difficulty in getting up' is the definition.
I know nothing about this answer so I cannot tell whether it can be defined by this definition.
'an ancient language' is the wordplay.
I cannot really understand how this works, but
'an' could be 'per' (synonymous as in 'once an hour', 'once per hour') and 'per' is present in the answer.
'language' could be 'ada' (I've seen this before) and 'ada' is present in the answer.
This may be the basis of the clue (or it may be nonsense).
'in' is the link.
Can you help me to learn more?
(Another definition for per ardua ad astra that I've seen is " motto".)