Stuck-up It Girl's first touching gesture (3)
I believe the answer is:
tig
'touching gesture' is the definition.
I know nothing about this answer so I can't tell whether it can be defined by this definition.
'stuck-up it girl's' is the wordplay.
'stuck up' is a reversal indicator.
'girl' becomes 'g'.
'it' back-to-front is 'ti'.
'ti'+'g'='TIG'
'first' is the link.
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