A ramble up around Stein Head provides variety (3-5)
I believe the answer is:
all-sorts
'variety' is the definition.
(all-sorts means a variety of things)
'a ramble up around stein head' is the wordplay.
'ramble' becomes 'stroll' (synonyms).
'up' is a reversal indicator (in down clue: letters go upwards).
'around' is an insertion indicator.
'head' says to take the initial letters.
The first letter of 'stein' is 's'.
'stroll' in reverse letter order is 'llorts'.
'llorts' enclosing 's' is 'llsorts'.
'a'+'llsorts'='ALL-SORTS'
'provides' acts as a link.
(Other definitions for all-sorts that I've seen before include "See 10" , "A mixed variety as of liquorice sweets" , "Mixture (of liquorice sweets?)" , "Things of various size, shape or colour; sweets" .)