Sharp point (5)
'sharp point' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for spike that I've seen before include "Sharp increase in intensity" , "ear" , "Doctor" , "spear" , "Anglo-Catholic comedian" .)
'sharp point' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for barb that I've seen before include "Cruel remark" , "added to wire?" , "A thorn or a gibe" , "Hurtful comment" , "Backward-facing part of hook" .)