Pancake giving cold salesperson energy (5)
I believe the answer is:
crepe
'pancake' is the definition.
(I know that crepe is a type of pancake)
'giving cold salesperson energy' is the wordplay.
'giving' says to put letters next to each other.
'cold' becomes 'c' (eg on taps).
'salesperson' becomes 'rep' (sales rep).
'energy' becomes 'e' (physics symbol as in E=mc2).
'c'+'rep' is 'crep'.
'crep'+'e'='CREPE'
(Other definitions for crepe that I've seen before include "One fabric" , "Crinkled paper or fabric" , "White fat" , "Crinkly fabric and French pancake" , "French dish" .)