Spare shilling? Give an expression of hesitation (7)

I believe the answer is:

slender

'spare' is the definition.
(I've seen this before)

'shilling? give an expression of hesitation' is the wordplay.
'shilling?' becomes 's'.
'give' becomes 'lend' (lending is a kind of giving).
'an expression of hesitation' becomes 'er'.
's'+'lend'+'er'='SLENDER'

(Other definitions for slender that I've seen before include "Shakespearean character" , "inadequate" , "Feeble" , "Sylphlike" , "Barely sufficient (means)" .)

I've seen this clue in The Telegraph.

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