Team climb round face of Rushmore (5)
I believe the answer is:
group
'team' is the definition.
(thesaurus)
'climb round face of rushmore' is the wordplay.
'climb' becomes 'goup' (to go up is to climb or rise).
'round' indicates putting letters inside.
'face of' indicates taking the first letters.
The initial letter of 'rushmore' is 'r'.
'goup' going around 'r' is 'GROUP'.
(Other definitions for group that I've seen before include "Musical band" , "Set; band" , "Set, maybe of musicians" , "Assemble" , "Set; place together" .)