Pull up by church in ravine (5)
I believe the answer is:
gulch
'ravine' is the definition.
(gulch is a kind of ravine)
'pull up by church' is the wordplay.
'pull' becomes 'lug' (I've seen this in another clue).
'up by' is a reversal indicator.
'church' becomes 'ch' (abbreviation on maps etc).
'lug' in reverse letter order is 'gul'.
'gul'+'ch'='GULCH'
'in' acts as a link.
(Other definitions for gulch that I've seen before include "A narrow gorge with a stream running through it" , "Narrow gorge with a stream in North America" , "Narrow ravine (US)" , "valley" , "Narrow ravine (Amer.)" .)