Pass out of recollection (3)
I believe the answer is:
col
'pass' is the definition.
(col is a term for a mountain pass)
'of recollection' is the wordplay.
'of' says the answer is hidden in the clue.
'COL' is hidden in the letters of 'recollection'.
'out' acts as a link.
(Other definitions for col that I've seen before include "A pass through ridge" , "A depression in mountain range" , "Low area between peaks" , "Depression among ecologists" , "Mountain defile" .)