Alarm seen in Tardis, maybe (6)
I believe the answer is:
dismay
'alarm' is the definition.
('dismay' can be a synonym of 'alarm')
'in tardis maybe' is the wordplay.
'in' says the answer is hidden in the clue.
'DISMAY' is hidden within 'tardis maybe'.
'seen' is the link.
(Other definitions for dismay that I've seen before include "Sadden" , "Disquiet or shock" , "'Alarm, consternation (6)'" , "Fill with consternation" , "trouble" .)