Regret placing limits on price in landlord's payment (6)
I believe the answer is:
repent
'regret' is the definition.
(I know that regret can be written as repent)
'limits on price in landlord's payment' is the wordplay.
'limits on' means to remove the middle letters (only the letters at the limits or edges).
'in' indicates putting letters inside.
'landlord's payment' becomes 'rent' (payment to a landlord).
'price' with its middle taken out is 'pe'.
'pe' put within 'rent' is 'REPENT'.
'placing' is the link.
This may not be correct. It may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for repent that I've seen before include "creeping along the ground" , "Be ashamed" , "Feel or express contrition" , "Feel sincere regret" , "Be sorry for - . . . . . . ye sinners" .)