Cycle (5)
'cycle' is the definition.
(pedal can mean to cycle a bicycle)
This is the entire clue.
(Other definitions for pedal that I've seen before include "Lever operated by foot" , "Foot-operated lever" , "Lever worked by foot" , "Brake or clutch perhaps" , "Ride a bicycle" .)
'cycle' is the definition.
(I know that cycle can be written as bike)
This is all the clue.
(Other definitions for bike that I've seen before include "Bicycle (colloq.)" , "See 5" , "Cycle (colloq.)" , "vehicle" , "Two-wheeler (abbr)" .)
'cycle' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for series that I've seen before include "Group of related radio/TV programmes" , "Number of similar things arranged in order" , "Set of anything" , "Sequence; tone row" , "Progression of things" .)
(Other definitions for rem that I've seen before include "Sleep stage when dreaming occurs" , "Phase in sleep" , "radiation unit" .)