Taken out of context, remembrance may be intense (7)
I believe the answer is:
extreme
'intense' is the definition.
(similar in meaning)
'taken out of context remembrance may' is the wordplay.
'taken out of' indicates the answer is hidden within the clue.
'EXTREME' can be found hidden inside 'context remembrance may'.
'be' is the link.
(Other definitions for extreme that I've seen before include "Far beyond the norm" , "Drastic; outermost" , "Very great; not usual" , "Furthest or highest degree of something" , "too much" .)