Updraught (7)
I believe the answer is:
thermal
(Other definitions for thermal that I've seen before include "Pertaining to heat" , "which can take a glider up" , "Designed to retain heat" , "Caloric" , "Type of air current" .)
I believe the answer is:
thermal
(Other definitions for thermal that I've seen before include "Pertaining to heat" , "which can take a glider up" , "Designed to retain heat" , "Caloric" , "Type of air current" .)