West End actress is crushing it (9)

'west end' is the definition.
The answer and definition can be both related to natural events as well as being singular nouns.
Perhaps you can see a link between them that I don't see?

'actress is crushing it' is the wordplay.
I cannot quite understand how this works, but
'it' could be 't' (abbreviation. e.g. in 'tis) and 't' is located in the answer.
The remaining letters 'rampling' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...

Can you help me to learn more?