Initially viewing mountain peak in time to see flower (7)
I believe the answer is:
verbena
'flower' is the definition.
(verbena is a kind of flower)
'initially viewing mountain peak in time' is the wordplay.
'initially' suggests taking the first letters.
'mountain peak' becomes 'ben' (Scottish term for a peak as in Ben Nevis).
'in' indicates putting letters inside.
'time' becomes 'era' (era is a kind of time).
The initial letter of 'viewing' is 'v'.
'ben' placed into 'era' is 'erbena'.
'v'+'erbena'='VERBENA'
'to see' acts as a link.
(Other definitions for verbena that I've seen before include "Herbaceous plant" , "Ornamental plant with showy flowers" , "Vervain (plant)" , "Garden plant" , "Ornamental pant" .)