Worked one's way up in the right holiday centre (6)
I believe the answer is:
resort
'holiday centre' is the definition.
(I've seen this before)
'worked one's way up in the right' is the wordplay.
'worked one's way' becomes 'rose' (I can't justify this - if you can you should believe this answer much more).
'up' is a reversal indicator (in down clue: letters go upwards).
'in' is an insertion indicator.
'the right' becomes 'rt'.
'rose' in reverse letter order is 'esor'.
'esor' going inside 'rt' is 'RESORT'.
Can you help me to learn more?
(Other definitions for resort that I've seen before include "Place for holidays" , "site for recreation" , "set out differently" , "Scarborough?" , "Holiday destination" .)