Last month I would study where no one could find me (6)
I believe the answer is:
hidden
'no one could find me' is the definition.
I can't judge whether this defines the answer.
'last month i would study' is the wordplay.
'last' indicates one should take the final letters.
'i would' becomes 'id'.
'study' becomes 'den' (I've seen this before).
The last letter of 'month' is 'h'.
'h'+'id'+'den'='HIDDEN'
'where' acts as a link.
Can you help me to learn more?
(Other definitions for hidden that I've seen before include "Unseen" , "Latent" , "Concealed, recondite" , "Covert, obscured" , "Deliberately placed out of sight and hard to find" .)