Caught vicar with meth and crack (7)
I believe the answer is:
crevice
'crack' is the definition.
(I know that crack can be written as crevice)
'caught vicar with meth' is the wordplay.
'caught' becomes 'c' (cricket abbreviation).
'vicar' becomes 'rev' (short for reverend).
'with' says to put letters next to each other.
'meth' becomes 'ice' (I am not sure about this - if you are sure you should believe this answer much more).
'c'+'rev'+'ice'='CREVICE'
'and' acts as a link.
Can you help me to learn more?
(Other definitions for crevice that I've seen before include "Narrow rock fissure" , "Opening" , "Crack or fissure." , "Cleft, fissure" , "Narrow crack" .)