Hold fast (6)
'hold fast' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for anchor that I've seen before include "Device used to prevent vessel from drifting" , "Stabilising factor" , "ground" , "I present" , "Ship's mooring at sea" .)
(Other definitions for pinion that I've seen before include "Confine - flight feather - cog" , "Outer segment of bird's wing" , "Immobilize" , "Restrain by holding, or bird's wing" , "Cogwheel; part of wing" .)
'hold fast' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for cohere that I've seen before include "Fuse together" , "Cling" , "Hold firmly together" , "Be consistent" , "Even; without jerks" .)
'hold fast' is the definition.
(synonyms)
This is the entire clue.
(Other definitions for adhere that I've seen before include "paste" , "Keep" , "Stick to, remain loyal" , "Stick with header" , "'Stick to, a play say (6)'" .)