Cool selection of cakes to ice (5)
I believe the answer is:
stoic
'cool' is the definition.
(thesaurus)
'selection of cakes to ice' is the wordplay.
'selection of' indicates a hidden word.
'STOIC' is hidden in the letters of 'cakes to ice'.
(Other definitions for stoic that I've seen before include "Unflappable type" , "Resilient philosopher" , "Uncomplaining person" , "Uncomplaining in suffering" , "Someone seemingly indifferent to pleasure or pain" .)