Felt (6)
'felt' is the definition.
('sense' can be a synonym of 'feel')
This is all the clue.
(Other definitions for sensed that I've seen before include "Became vaguely aware of (something)" , "'Felt, perceived (6)'" , "Became aware through mental perception or intuition" , "Felt, tasted, etc" , "Felt, had mental impression" .)
'felt' is the definition.
This is all the clue.
(Other definitions for groped that I've seen before include "Felt about as if in darkness" , "Reek" , "Fumbled" , "Felt uncertainly about as in dark." .)