Attractive Royal appearing after cheers (6)
I believe the answer is:
taking
'attractive' is the definition.
(similar in meaning)
'royal appearing after cheers' is the wordplay.
'royal' becomes 'king' (a king is royal).
'appearing after' says to put letters next to each other.
'cheers' becomes 'ta' (both can informally mean thank you).
'king' after 'ta' is 'TAKING'.
(Other definitions for taking that I've seen before include "Extra item added to book" , "Removal" , "Removing; stealing" , "acceptance" , "Harm, damage" .)