Enhance (5)
'enhance' is the definition.
(I know that enhance is a more specific form of heighten)
This is the entire clue.
(Other definitions for heighten that I've seen before include "effect some improvement" , "Make more intense - elevate?" , "Raise" , "Increase in amount of degree" , "Elevate - intensify" .)
'enhance' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for adorn that I've seen before include "Festoon" , "get dressed!" , "Beautify - decorate - enhance" , "Make more attractive" , "dress" .)
'enhance' is the definition.
(thesaurus)
This is the entire clue.
(Other definitions for boost that I've seen before include "Increase or encourage(ment)" , "Improve - pick-me-up" , "advance" , "lift" , "Uplift" .)