Possibly wake in an enfeebled condition (4)
I believe the answer is:
weak
'enfeebled condition' is the definition.
'weak' can be an answer for 'enfeebled' (thesaurus). I am not certain of the 'condition' bit.
'possibly wake in' is the wordplay.
'wake' can be anagrammed to 'WEAK'.
Though, I'm not sure how the anagram is indicated.
'an' is the link.
Can you help me to learn more?
(Other definitions for weak that I've seen before include "Faint; frail" , "Puny" , "Easily led" , "Feeble or frail" , "Spent" .)