Reptilian, one providing extra publicity? (4,5)
I believe the answer is:
puff adder
'reptilian' is the definition.
(puff adder is a kind of reptilian)
'one providing extra publicity?' is the wordplay.
I cannot really see how this works, but
'one' could be 'a' and 'a' is located in the answer.
'publicity?' could be 'puff' (I've seen this before) and 'puff' is found in the answer.
This may be the basis of clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for puff adder that I've seen before include "Venomous viper" , "poisonous creeper" , "Large viper" , "African viper" , "Snake" .)