Crossword Genius

Travel first class? Put yourself down for a saver! (6)

Ross

I believe the answer is:

goalie

I'm a little stuck... Click here to teach me more about this clue!

'down for a saver' is the definition.
I can't tell whether this defines the answer.

'travel first class? put yourself' is the wordplay.
'travel' becomes 'go' (synonyms).
'first class?' becomes 'A' (as in A-list, A-team etc).
'put' says to put letters next to each other.
'yourself' becomes 'lie' (I can't justify this - if you can you should believe this answer much more).
'go'+'a'+'lie'='GOALIE'

Can you help me to learn more?

(Other definitions for goalie that I've seen before include "Footballer" , "On-field custodian" , "one saves" , "number one" , "Soccer player who protects the target" .)

I've seen this clue in The Times.
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