Fast time (4)
I believe this clue is a double definition.
'fast' is the first definition.
(Lent is a period of fasting in Christianity)
'time' is the second definition.
(I have seen 'Time of fasting ' mean 'lent' so perhaps 'time' could also mean 'lent')
(Other definitions for lent that I've seen before include "Christian penitential season" , "Christian period of abstinence" , "Fast time" , "Forty days of fasting" , "Christian penitential period" .)
'fast time' is the definition.
(month in which Muslims fast)
This is the entire clue.
(Other definitions for ramadan that I've seen before include "Moslem fast" , "Month in Muslim calendar" , "Muslim period of fasting" , "Islam's holiest month" , "The fasting month for Muslims, ninth of year" .)