Bear market displays reserve (7)
I believe the answer is:
earmark
'reserve' is the definition.
(synonyms)
'bear market displays' is the wordplay.
'displays' indicates a hidden word (part of the clue displays the answer).
'EARMARK' is hidden in the letters of 'bear market'.
(Other definitions for earmark that I've seen before include "Designate for a specific purpose" , "Reserve for later use" , "Set specially aside" , "reserve for future use" , "It identifies the outcome" .)